strawberry basil layer cake

I’ve officially made it through another entire year of life.
(I recently celebrated a birthday.)

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

I am a big fan of surprise parties, and I’ve thrown a couple for Russell over the course of our relationship, but Russell can’t keep a secret to save his life. If he ever decided he wanted to throw me a surprise party, he’d probably accidentally let the cat out of the bag before he invited any guests.
He’s the kind of person that wants to give me my Christmas presents the day he buys them, while I am the kind of person who staunchly refuses to even look in the general direction of my gifts until Christmas day. His eagerness and honesty are positive qualities in the grand scheme of things, but, like I said, I am a big fan of surprise parties.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

That means that I am usually responsible, to some extent at least, for the planning of my own birthday party each year. I asked Russell to take the lead in throwing the party this year, but he said he didn’t want to be in charge because I’m “too controlling” about parties. I was pretty annoyed at first, but then realized he’s probably right. I’m such a perfectionist, and love entertaining so much, that I do tend to get a bit uptight about wanting everything to be just right.

After making him feel appropriately crappy for calling me controlling, I assured him that this year I didn’t want to play any part in the planning, save for one single thing.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

I wanted to make my own cake.

I know.
I’m weird.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

Last year I made my own cake too, a 3 layer funfetti cake with the sides completely covered in tiny rainbow nonpareils. Most people, when told that I planned to make my own cake, reacted with a mix of sorrow and horror.

How depressing? Why?!?!? You’re not supposed to make your own birthday cake. That’s just sad!

But here’s the thing. I love to bake. I just do. It’s one of my favorite hobbies, and I’m pretty good at it. Birthdays are big festive events and I think they call for big festive baked goods. Russell isn’t much of a baker, and I know that anything from the grocery store wouldn’t be half as good as what I could make myself. I also know that a cake from fancy pants specialty bakery here in Brooklyn would cost an arm and a leg.

So, the so called “rules” against making your own birthday cake went out the window and it was game on. Again.

 strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

I’ve been thinking about what I’d do for months, and while I knew that I wanted to include the flavor of fresh strawberries, I wasn’t quite sure how I’d do it. I could bake the strawberries into the layers of the cake, or mix them into the icing, but after some thought I decided to just let them sing as fresh sliced berries stuffed between layers of cake.

Next I had to decide on cake and icing flavors. Originally I thought I might go in a kind of strawberry shortcake direction with yellow cake and whipped cream icing, but then I had to go and turn on the damned TV. There was some show on the cooking channel about a bakery using “basil sugar” made by grinding white sugar and fresh basil together in a food processor. The idea is that since the sugar absorbs the basil’s oils, baked goods made using the sugar taste fresher than they would if made with basil puree.

It didn’t take long for the wheels to start turning about a strawberry layer cake paired with the subtle summery flavor of basil.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

Knowing that I wanted this cake to be a real knock-out, I decided to test the idea out ahead of time. I found a recipe for basil sugar online and conducted an experiment with three different batches of cupcakes. The first batch was made with one of my favorite yellow cake recipes, the next with half of the white sugar substituted with basil sugar, and the third with an even higher basil sugar ratio.

To complicate my life even further, the pinterest gods had to go and show me a beautiful layer cake iced with a basil buttercream made from milk and cream steeped with fresh basil leaves.

I decided, just in case, that I should try the basil buttercream out for my “control group” cupcakes, while the two batches of basil sugar cupcakes would be topped with stabilized whipped cream. All three versions were cored and filled with fresh strawberries, and I took a big tray of cupcakes to work and started taking votes.

As much as everyone loved the cakes made with basil sugar (the 1/2 basil to 1/2 white ratio worked best), I was surprised to find that the silky smooth texture and amazing flavor of the basil buttercream won by a landslide. I still love the basil sugar idea, and have a tub of it in my freezer waiting to line the rims of cocktail glasses or get sprinkled on vanilla ice cream or fresh berries.

For my purposes though, the experiment gave me the results I needed and the plan for the cake was settled. Tender yellow cake layers would be stuffed with fresh sliced strawberries and everything would be coated in a satin layer of palest green basil buttercream.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

The day of the party came, and Russell did it up right proper. Good friends, good food, good music, good wine, and good weather on a good night in our backyard. A smoking grill and a big bowl of phenomenal homemade guacamole. Rosé by the bucket. It was perfect. Best husband ever. After all, he puts up with me, uptight perfectionist and all.

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

Then, toward the end of the evening, there was the pièce de résistance.

While it’s true that I write a food blog (you may have noticed) and getting feedback and words of encouragement comes with the territory, getting compliments in person tends to make me feel more than a little uncomfortable.

When the cake was served I was made plenty uneasy by the barrage of positivity coming my way. Maybe it was the river of wine and whiskey that was flowing in the yard that night, but people were plenty free with the praise for this cake.
You made this?!?! The crumb is so tender! Those fresh strawberries!! And OMG that basil icing!!!
People are still talking about it almost two weeks later.

Happy birthday to me!

strawberry stuffed yellow layer cake with basil buttercream | Brooklyn Homemaker

Strawberry Stuffed Yellow Layer Cake with Basil Buttercream

Fresh Strawberry Filling:
2 lbs fresh strawberries (plus another 1/2 lb for decorating if desired)
1/3 cup sugar
pinch salt
1 teaspoon vanilla extract

Wash strawberries and place let them drain in a colander or dry on a towel. Working only with the 2 lbs for the filling, hull the strawberries and slice them thinly. Place in a medium bowl and toss with sugar, salt, and vanilla. Allow the strawberries to macerate in the sugar for at least an hour or two at room temperature.
Drain the juices from the bowl into a small to medium saucepan. Over medium/high heat, reduce the strawberry juice by about half or a little more, stirring frequently. This should take about 20 minutes. Cool the reduced juice completely before pouring back over the berries and tossing to coat. Cover and refrigerate until ready to assemble the cake.

Yellow Cake:
adapted from Epicurious

4 cups cake flour
4 1/2 teaspoons baking powder
1 teaspoon salt
1 1/2 cups (3 sticks) unsalted butter, room temperature
2 1/2 cups granulated sugar
6 large eggs
1 tablespoon vanilla extract
1 3/4 cups buttermilk

Preheat oven to 350°F. Butter three 8×2-inch round cake pans and line with parchment paper. (I use pre-cut parchment rounds) Butter the parchment and lightly coat the interior of the pans with flour. Refrigerate until ready for use.

Whisk together the flour, baking powder, and salt in a medium bowl.
In the bowl of an electric mixer fitted with a paddle attachment, cream the butter on medium/high speed for 3 minutes or until light and creamy in color. Scrape down the sides of the bowl and cream the butter for an additional minute.
Add the sugar, about 1/4 cup at a time, beating for 30 seconds to a minute after each addition. Scrape the sides of the bowl occasionally. Once all sugar is added, scrape down the bowl and add the eggs one at a time.
Stir the vanilla into the buttermilk. Reduce the mixer speed to low or stir, and add the dry ingredients alternately with the buttermilk. Mix just until incorporated. Scrape the sides of the bowl and mix for 15 seconds longer.

Divide the batter evenly between the prepared pans and smooth the tops. If possible use a scale to ensure each pan has the same amount of batter.
Lift up each pan about an inch and let them drop onto the counter top to knock out any air bubbles and settle the batter.
Center the pans onto a rack in the lower third of the oven and let bake 45 to 50 minutes or until the cakes are lightly brown and a toothpick or cake tester inserted in the centers comes out clean.

Let cool on a rack for about an hour before removing from pans. Leave parchment rounds on the bottoms of the cakes until assembly, and return layers, parchment side down, to the rack until completely cool to the touch.

Basil Buttercream
adapted ever so slightly from the Vanilla Bean Blog

1 1/2 cups whole milk
1/3 cup heavy cream
1 cup fresh basil leaves, well packed
1 1/2 cups granulated sugar
1/3 cup all purpose flour
1 1/2 cups (three sticks) unsalted butter, soft but cool, cut into small pieces (about 70 degrees – butter should be  soft enough to mix well, but firm enough to give some structure to the buttercream)
1 tsp pure vanilla extract

Combine milk, heavy cream, and basil in a heavy bottomed saucepan. Heat gently, until just simmering, and remove from the heat. Let cool for about 30 minutes and pour the mixture in the bowl of a food processor. Process for about 30 seconds or until the basil is well chopped. Scrape all basil and liquid into a small bowl, cover and refrigerate for at least 2 hours, or ideally overnight.
Pour mixture through a fine mesh sieve into a small heavy bottomed saucepan. Use the back of a spoon to squeeze any ‘basil juice’ from the leaves into the milk/cream mixture. Whisk in the flour and sugar, and cook over medium heat, whisking occasionally, until the mixture comes to a boil and has thickened, about 10 or 15 minutes.
Transfer the mixture to the bowl of a stand mixer fitted with a paddle attachment. Place a kitchen towel over the top of the mixer to prevent splashing. Beat on high speed until the mixture has completely cooled, about 7-9 minutes. Reduce the speed to low and add the butter, mixing until thoroughly incorporated. At first it might not look right, but just keep going. Increase the mixer speed to medium/high and beat until the frosting is light and fluffy, about another 2 minutes.
Add the vanilla and mix until combined. If the frosting is too soft, put the bowl in the refrigerator to chill slightly, then beat again until it is the proper consistency. If the frosting is too firm, set the bowl over a pot of barely simmering water and beat with a wooden spoon until it is the proper consistency.

Assembly:
1) Level the tops of the cake layers using a cake leveler or a very sharp serrated knife.

2) Place the first layer on an 8″ cardboard cake round or on a cake stand.  Place the round or cake stand on a revolving turntable or lazy suzan.

3) Fill a piping bag with about one cup of the basil buttercream icing. It isn’t necessary to fit the bag with a decorating tip.

4) Pipe a tall border around the perimeter of the first layer, using about 1/2 of the icing in the bag.

5) Top the first layer with about half of your strawberries and reduced juice, staying within the icing border. Try to even the berries out so they’re in an even level layer.

6) Center the next layer over the first, checking from several angles to be sure the layers are perfectly lined up straight and evenly.

7) Repeat steps 4, 5, & 6.

8) Using about 1/3 to 1/2 of the remaining icing , cover the entire outside of the cake with a thin crumb coat using an icing spatula. I like to pile the icing at the top of the cake and work it down the sides little by little, turning the turntable as you go, until the entire cake is coated. I find that an offset spatula is easier to use, but that’s up to you.
This step ensures that any crumbs coming off the cake will be captured in this first thin layer of icing and will not show on the finished cake. I find it also makes it easier to get a smooth profession looking final layer of icing.

9) Refrigerate the entire cake for about 30 minutes to an hour. This step sets the crumb coat so it doesn’t mix into your final top layer of icing. I also find that it helps steady the filling and makes the layers of cake less likely to slip and slide around while you’re trying to ice or decorate.

10) Using the remaining icing, coat the entire cake using an icing spatula in the same way you did the crumb coat.

11) Try to smooth the icing as much as possible using your spatula or a straight bench scraper. I find that holding the spatula straight up and down, almost stationary, while turning the cake is the easiest way to get a smooth finish to the sides.

12) If desired, top the cake with the remaining 1/2 cup strawberries and a few leaves of basil. I think it looks more attractive if the stems and leaves are still attached to the berries, but that’s your call. It will mean that your guests will have to remove the stems themselves if they plan to eat the berries along with the cake.  If you’d prefer to do a piped icing border you will need to reserve some icing, or increase the recipe slightly.

For a more in depth tutorial, see my funfetti birthday cake recipe from last year. For an AMAZING how-to video on how to get a smooth and professional icing job, check out this “modern buttercream” class, completely free, from Craftsy.

If you need to refrigerate the cake, I recommend letting it chill in the fridge for about an hour to set the icing before covering in plastic wrap (so the wrap doesn’t stick to the icing and ruin the smooth coat you worked so hard to create.) This cake is at it’s best the day it’s baked, but once covered, it can be refrigerated for a day or two. The fresh berries may lose their freshness the longer it’s held. Bring completely to room temperature before serving, at least an hour or two.

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36 comments

  1. Absolutley beautiful, the cake is spectacular. What a great Birthday cake and a very Happy (belated) Birthday to you Tux, sounds like a grand party and I can certainly see why people who ooh and ahhh over that cake. It’s amazing!!

    Liked by 1 person

  2. happy birthday! that is one beautiful cake.
    id love to bake my own cake but have always been told i am not allowed- i will, next year.
    i was browsing the NY bakery book Ovenly this morning and a very similar flavour combination came up which made me stop and think ‘i have to do that!’ so thanks for sharing.

    Liked by 1 person

  3. Happy belated birthday!! This cake looks *fantastic* and I love the creative ways you found to incorporate basil. And for the record, I don’t think there’s anything wrong with or sad about voluntarily making your own birthday cake – especially not when you’re whipping up a beauty like this one!

    Liked by 1 person

  4. Tux this cake is just gorgeous! I was just thinking that the crumb looked amazing when you mentioned it in your post by your friend. I think it’s a great idea to make your own cake. If I waited for my husband to do it, I would never get one unless he could grill it. I am so impressed with your experimenting. I need to get better at it and explore ideas instead of pitching them if they don’t turn out the way that I visioned. Happy Birthday (if I’m not too terribly late for the party) Tux!

    Liked by 1 person

    1. Thank you Julie!!! I’ll never need another yellow cake recipe- it made great cupcakes too when I did my flavor experiments. I normally don’t go to all the trouble of trying out different flavors before I work on a post, and if something doesn’t work out the way I’d hoped I just don’t post it or I try again another time. Since this cake had to be served on a specific date and needed to feed so many people I thought it was worth the effort to make sure it was just right. (and it definitely was!)

      Liked by 1 person

  5. Tux – you outdid yourself – this is just too much! I’ve got a birthday coming up. My sisters are planning a surprise party. How do I know? Because they enlisted Hubby’s help and he can’t plan a party to save his life, so I’m “backstage” pulling the strings on the whole event. Now the trick will be to act surprised. Happy Birthday!

    Liked by 1 person

  6. This post made me LOL..you just talked about how you not only made your own birthday cake, but conducted culinary experiments with several variations and control groups…you’re right, not a controlling perfectionist at all :) hahah

    Seriously, this looks so amazing. I sort of hate you a little. That basil buttercream is just genius, and then the strawberries that are BAKED IN in their natural state! just, omfg.

    Happy belated :) Are you a May baby? Mine was the 26th. Just sayin’..in case you know, you wanted to send me some of this cake or something lol

    Liked by 1 person

    1. hahahaha! Well when you put it that way…
      I still just can’t imagine why Russell might have found the prospect of planning a party for me intimidating! haha!
      Sorry, this cake is looooong gone :( Mine is the 18th of May, it just took me a bit to get the post together. Happy birthday to you too!

      Liked by 1 person

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