Kue Ulang Tahun Vanila dengan Krim Mentega Cokelat Kocok.

Bahan-bahan (18 porsi)

• 3 3/4 cup cake flour*
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 1 1/2 teaspoons kosher salt
• 3 sticks (1 1/2 cups) unsalted butter, at room temperature
• 2 cups granulated sugar
• 3 whole eggs + 3 egg yolks
• 1/4 cup greek yogurt
• 1 1/2 cups cup buttermilk
• 1 tablespoons vanilla extract
• 4 sticks (2 cups) salted butter, softened to room temperature
• 4 cups powdered sugar
• 1 cup unsweetened cocoa powder
• 1 tablespoon vanilla extract
• 4 -5 tablespoons heavy whipping cream