Yellow Buttermilk Cupcake w/Buttercream Frosting

By á-3948

I made these cupcakes for my son's party and then added a fish on top for the theme of the swim party.

Ingredients

• Cake Ingredients
• 3 cups cake flour, (not self-rising)
• 1 1/2 cups all-purpose flour
• 3/4 teaspoon baking soda
• 2 1/4 teaspoons baking powder
• 1 1/2 teaspoons coarse salt
• 1 cup plus 2 tablespoons (2 1/4 sticks) unsalted butter, room temperature
• 2 1/4 cups sugar
• 5 large whole eggs plus 3 egg yolks, room temperature
• 2 cups buttermilk, room temperature
• 2 teaspoons pure vanilla extract
• Buttercream Frosting Ingredients
• 8 tablespoons (1 stick/4 oz./113g) butter, at room temperature
• 3 cups confectioners' (icing) sugar, sifted
• 3 to 5 tablespoons milk
• 1 teaspoon pure vanilla extract
• Food coloring, if tinting frosting

Preparation

Step 1

Cake Directions
Preheat oven to 350 degrees. Line standard muffin tins with paper liners. Sift together both flours, baking soda, baking powder, and salt.

With an electric mixer on medium-high speed, cream butter and sugar until pale and fluffy. Reduce speed to medium. Add whole eggs, one at a time, beating until each is incorporated, scraping down sides of bowl as needed. Add yolks, and beat until thoroughly combined. Reduce speed to low. Add flour mixture in three batches, alternating with two additions of buttermilk, and beating until combined after each. Beat in vanilla.

Divide batter evenly among lined cups, filling each three-quarters full. Bake, rotating tins halfway through, until cupcakes spring back when lightly touched and a cake tester inserted in centers comes out clean, about 20 minutes. Transfer tins to wire racks to cool 10 minutes; turn out cupcakes onto racks and let cool completely.

Buttercream Frosting Directions
Place the butter in a large mixing bowl. Blend with an electric mixer on low speed until fluffy, 30 seconds. Stop the machine and add the confectioners' sugar, 3 tablespoons of the milk, and the vanilla.

Blend with the mixer on low speed until the sugar is incorporated, 1 minute. Increase the speed to medium and beat until light and fluffy, 1 minute more. Add up to 1 tablespoon more milk if the frosting seems too stiff.