Happy Birthday Cake

Photo by Cathy T.
Adapted from yijiagu.com

PREP TIME

--

minutes

TOTAL TIME

--

minutes

SERVINGS

1

servings

PREP TIME

--

minutes

TOTAL TIME

--

minutes

SERVINGS

1

servings

Adapted from yijiagu.com

Ingredients

  • Momofuku Birthday Cake:

  • Makes 1 (6-inch) layer cake, 5 to 6 inches tall, serves 6-8

  • 1

    recipe, Birthday cake (recipe to follow)

  • 1

    recipe, Birthday cake soak (recipe to follow)

  • 1

    recipe, Birthday cake frosting (recipe to follow)

  • 1

    recipe, Birthday cake crumb (recipe to follow)

  • 1

    (6-inch) cake ring

  • 2

    stirps acetate, each 3 inches wide and 20 inches long

  • Birthday Cake:

  • Makes 1 quarter sheet pan cake

  • 4

    tablespoons butter at room temperature

  • 1/3

    cup vegetable shortening

  • 1 1/4

    cups granulated sugar

  • 3

    tablespoons tightly packed light brown sugar

  • 3

    eggs

  • 1/2

    cup buttermilk

  • 1/3

    cup grapeseed oil

  • 2

    teaspoons clear vanilla extract

  • 2

    cups cake flour

  • 1 1/2

    teaspoons baking powder

  • 3/4

    teaspoon kosher salt

  • 1/4

    cup rainbow sprinkles

  • Pam or other nonstick cooking spray

  • 2

    tablespoons rainbow sprinkles

  • Birthday Cake Soak:

  • Makes about 1/4 cup

  • 1/4

    cup milk (

  • 1

    teaspoon clear vanilla extract

  • Birthday Cake Frosting:

  • Makes about 2 cups

  • 8

    tablespoons butter at room temperature

  • 1/4

    cup vegetable shortening

  • 2

    ounces grams cream cheese

  • 1

    tablespoon + 2 teaspoons corn syrup

  • 1

    tablespoon clear vanilla extract

  • 1 1/4

    cups confectioners’ sugar

  • 1/2

    teaspoon kosher salt

  • pinch baking powder

  • pinch citric acid

  • Birthday Cake Crumb:

  • Makes about 2 1/4 cups

  • 1/2

    cup granulated sugar

  • 1 1/2

    tablespoons tightly packed light brown sugar

  • 3/4

    cup cake flour

  • 1/2

    teaspoon baking powder

  • 1/2

    teaspoon grams kosher salt

  • 2

    tablespoons rainbow sprinkles

  • 1/4

    cup grapeseed oil

  • 1

    tablespoon clear vanilla extract

Directions

Momofuku Birthday Cake: 1.Put a piec eof parchment or Silpat on the counter. inverst the cake onto it and peel off the parchment or Silpat from the bottom of the cake. Use the cake ring to stamp out 2 circles from the cake. These are your top 2 cake layers. The remaining cake “scrap” will come together to make the bottom layer of the cake. Layer 1, the bottom: 1.Clean the cake ring and place it in the center of a sheet pan lined with clean parchment or Silpat. Use 1 strip of acetate to line the inside of the cake ring. 2.Put the cake scraps in the ring and use the back of your hand to tamp the scraps together into a flat even layer. 3.Dunk a pastry brush in the birthday cake soak and give the layer of cake a good, healthy bath of half of the soak. 4.Use the back of a spoon to spread 1/5 of the frosting in an even layer over the cake. 5.Sprinkle 1/3 of the birthday crumbs evenly over the top of the frosting. Use the back of your hand to anchor them in place. 6.Use the back of a spoon to spread a second 1/5 of the frosting as evenly as possible over the crumbs. Layer 2, the middle: 1.With your index finger, gently tuck the second strip of acetate between the cake ring and the top 1/4 inch of the first strip of acetate, so that you have a clear ring of acetate 5-6 inches tall – high enough to support the height of the finished cake. Set a cake round on top of the frosting, and repeat the process for layer 1 (if 1 of your 2 cake rounds is jankier than the other, use it here in the middle and save the prettier one for the top). Layer 3, the top: 1.Nestle the remaining cake round into the frosting. Cover the top of the cake with the last 1/5 of the frosting. Give it volume and swirls, or do as we do and opt for a perfectly flat top. Garnish the frosting with the remaining birthday crumbs. 2.Transfer the sheet pan to the freezer and freezer for a minimum of 12 hours to set the cake and filling. The cake will keep in the freezer for up to 2 weeks. 3.At least 3 hours before you are ready to serve the cake, pull the sheet pan out of the freezer and, using your fingers and thumbs, pop the cake out of the cake ring (using a warm butter knife to loosen the cake helps too). Gently peel off the acetate and transfer the cake to a platter or cake stand. Let it defrost in the fridge for a minimum of 3 hours (wrapped well in plastic, it can be refrigerated for up to 5 days). 4.Slice the cake into wedges and serve. Birthday Cake: 1.Heat the oven to 350F. 2.Combine the butter, shortening, and sugars in the bowl of a stand mixer fitted with the paddle attachment and cream together on medium-high for 2 to 3 minutes. Scrape down the sides of the bowl, add the eggs, and mix on medium-high for 2 to 3 minutes. Scrape down the sides of hte bowl once more. 3.On low speed, stream in the buttermilk, oil, and vanilla. Increase the mixer speed to medium-high and paddle for 4 to 6 minutes, until the mixture is practically white, twice the size of your original fluffy butter and sugar mixture, and completely homogenous. Don’t rush the process. You are basically forcing too much liquid into an already fatty mixture that doesn’t want to make room for the liquid. There should be no streaks of fat or liquid. Stop the mixer and scrape down the sides of the bowl. 4.On very low speed, add the cake flour, baking powder, salt and the 50 grams of rainbow sprinkles. Mix for 45 to 60 seconds, just until your batter comes together. Scrape down the sides of the bowl. 5.Pam spray a quarter sheet pan and line it with parchment, or just line the pan with a Silpat. Using a spatula, spread the cake batter in an even layer in the pan. Sprinkle the remaining 25 grams rainbow sprinkles evenly on top of the batter. 6.Bake the cake for 30 to 35 minutes. THe cake will rise and puff, doubling in size, but will remain slightly butter and dense. At 30 minutes, gently poke the edge of the cake with your finger: the cake should bounce back slightly and the center should no longer be jiggly. Leave the cake in the oven for an extra 3 to 5 minutes if it doesn’t pass these tests. 7.Take the cake out of the oven and cool on a wire rack or, in a pinch, in the fridge or freezer. The cooled cake can be stored in the fridge, wrapped in plastic wrap, for up to 5 days. Birthday Cake Soak: 1.Whisk together the milk and vanilla in a small bowl. Birthday Cake Frosting: 1.Combine the butter, shortening, and cream cheese in the bowl of a stand mixer fitted with the paddle attachment and cream together on medium-high for 2 to 3 minutes, until the mixture is smooth and fluffy. Scrape down the sides of the bowl. 2.With the mixer on its lowest speed, stream in the corn syrup and vanilla. Crank the mixer up to medium-high and beat for 2 to 3 minutes, until the mixture is silky smooth and a glossy white. Scrape down the sides of the bowl. 3.Add the confectioners’ sugar, salt, baking powder, and citric acid and mix on low speed just to incorporate them into the batter. Crank the speed back up to medium-high and beat for 2 to 3 minutes, until you have a brilliant stark white, beautifully smooth frosting. It should look just like it came out of a plastic tub at the grocery store. Use the frosting immediately, or store it in an airtight container in the fridge for up to 1 week. Birthday Cake Crumb: 1.Heat the oven to 300F. 2.Combine the sugars, flour, baking powder, salt and sprinkles in the bowl of a stand mixer with the paddle attachment and mix on low speed until well combined. 3.Add the oil and vanilla and paddle again to distribute. The wet ingredients will act as glue to help the dry ingredients form small clusters; continue paddling until that happens. 4.Spread the clusters on a parchment- or Silpat-lined sheet pan. Bake for 20 minutes, breaking them up occasionally. The crumbs should still be slightly moist to the touch; they will dry and harden as they cool. 5.Let the crumbs cool completely before using in a recipe or scarfing by the handful. Store in an airtight container, the crumbs will keep fresh for 1 week at room temperature or1 month in the fridge or freezer.

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