Brown Sugar Layer Cake w/Caramel Buttercream Frosting

By brenie_shydee

Ingredients

• Cake:
• 2 sticks unsalted butter, softened, plus more for pans
• 3 cups cake flour, plus more for pans
• 2 cups packed dark-brown sugar
• 1 cup granulated sugar
• 6 large eggs
• 1 tablespoon pure vanilla extract
• 1/4 teaspoon salt
• 8 ounces sour cream
• 1/2 teaspoon baking soda
• Frosting:
• 2 1/4 cups sugar, divided
• 1/2 cup water
• 1/2 cup heavy cream
• 9 large egg whites, room temperature
• 6 sticks unsalted butter, softened, divided
• 1 1/2 teaspoons pure vanilla extract

Preparation

Step 1

Cake:

1.Preheat oven to 325 degrees. Butter two 8-inch round cake pans. Line with parchment. Butter paper, and flour pans. Beat together butter and sugars with a mixer until light and fluffy, about 3 minutes. Beat in eggs, 1 at a time, beating well after each addition. Beat in vanilla. Whisk together flour and salt. In another bowl, combine sour cream and baking soda. Gradually add flour mixture to butter mixture in 3 additions, alternating with sour cream mixture and starting and ending with flour mixture.

2.Divide batter between pans. Bake until golden and a toothpick inserted into centers comes out clean, about 50 minutes. Let cakes cool in pans, about 30 minutes. Invert cakes, remove pans and parchment, and let cool completely on a wire rack.

3.Trim tops of cakes with a serrated knife to make level, then cut each cake in half horizontally. Reserve 1 bottom layer for another use. Place remaining bottom layer on a cake stand, and spread evenly with 1 1/4 cups frosting. Repeat with a second layer and another 1 1/4 cups frosting. Place third layer on top. Spread entire cake top and sides with 1 1/4 cups frosting. Refrigerate cake until firm, about 30 minutes. Spread with 1 1/2 cups frosting, smoothing top and sides. Serve immediately with marzipan animals, or refrigerate up to 2 days; if refrigerated, let cake come to room temperature before serving.


Frosting:

1.Combine 1 1/4 cups sugar and the water in a medium saucepan. Bring to a boil, stirring to dissolve sugar. Brush down sides of pan with a damp pastry brush, and cook, without stirring, until dark amber. Remove from heat, and gradually stir in cream until completely smooth.

2.Whisk together remaining sugar and the egg whites in the bowl of a mixer set over a pot of simmering water. Whisk until sugar dissolves and mixture is warm. Transfer bowl to a stand mixer fitted with the whisk attachment, and whisk on medium-high speed until fluffy and cool and stiff peaks form, about 10 minutes. Add butter, 2 tablespoons at a time, whisking well after each addition. Whisk in vanilla. Slowly pour in caramel with mixer on medium speed, and whisk until completely incorporated. Continue to whisk until smooth, about 3 minutes. Use immediately, or transfer to an airtight container and refrigerate up to 3 days. Before using, bring to room temperature, and beat until smooth.