Name: Mint Chocolate Chip Cake
Total time: 2 h 30 min
Ingredients: 1 cup whole milk , room temperature; 6 large egg whites , room temperature; 2 teaspoons vanilla extract; 2¼ cups (9 ounces/255 grams) bleached cake flour; 1¾ cups (12¼ ounces/347 grams) sugar; 4 teaspoons baking powder; 12 tablespoons unsalted butter , cut into 12 pieces and softened but still cool; 1 cup mini chocolate chips; 1½ teaspoons mint extract; 5 drops green food coloring; 20 tablespoons (2½ sticks) unsalted butter , cut into 20 pieces and softened; 8 ounces (227 grams) bittersweet chocolate , melted and cooled; 1 teaspoon vanilla extract; ⅛ teaspoon salt; 2 cups (8 ounces/227 grams) confectioners' sugar; 1½ cups mini chocolate chips

Mint Chocolate Chip Cake

By America's Test Kitchen

Published on July 30, 2013

Time

1½ hours, plus 1 hour cooling

Yield

Serves 8 to 10

Ingredients

Cake

1 cup whole milk, room temperature6 large egg whites, room temperature2 teaspoons vanilla extract 2¼ cups (9 ounces/255 grams) bleached cake flour 1¾ cups (12¼ ounces/347 grams) sugar 4 teaspoons baking powder 12 tablespoons unsalted butter, cut into 12 pieces and softened but still cool1 cup mini chocolate chips 1½ teaspoons mint extract 5 drops green food coloring

Chocolate Frosting

20 tablespoons (2½ sticks) unsalted butter, cut into 20 pieces and softened8 ounces (227 grams) bittersweet chocolate, melted and cooled1 teaspoon vanilla extract ⅛ teaspoon salt 2 cups (8 ounces/227 grams) confectioners' sugar

1½ cups mini chocolate chips

Instructions

for the cake

Adjust oven rack to middle position and heat oven to 350 degrees. Grease and flour three 8-inch cake pans. Mix milk, egg whites, and vanilla in 2-cup liquid measuring cup. Using stand mixer fitted with paddle, mix flour, sugar, baking powder, and salt on low speed until combined, about 5 seconds. Add butter, 1 piece at a time, and mix until only pea-size pieces remain, about 1 minute.

Add half of milk mixture, increase speed to medium-high, and beat until light and fluffy, about 30 seconds. Reduce speed to medium-low, add remaining milk mixture, and beat until incorporated, about 15 seconds (batter may look slightly curdled). Stir in 1 cup chocolate chips, mint extract, and food coloring until combined. Divide batter evenly among prepared pans and bake until toothpick inserted in center comes out clean, 20 to 25 minutes. Let cakes cool in pans for 10 minutes, then turn out onto wire rack. Let cool completely, at least 1 hour.

for the frosting

Using stand mixer fitted with whisk attachment, beat butter, melted chocolate, vanilla, and salt on medium-high speed until combined. Reduce speed to medium-low. With machine running, slowly add confectioners’ sugar and mix until smooth, about 1 minute. Increase speed to medium-high and beat until light and fluffy, 3 to 5 minutes.

Place 1 cake round on serving platter. Spread ¾ cup frosting over cake, then top with second cake round. Spread another ¾ cup frosting over cake, then top with third cake round. Spread remaining frosting evenly over top and sides of cake. Press chocolate chips onto sides of cake. Serve.