Combine white cake mix and chocolate sandwich cookies to make this easy dessert that kids love.
Prepare cake mix according to package directions, using the water, oil, and egg whites. Fold in crushed cookies.
Pour into 2 greased and floured 9x1-1/2-inch round cake pans. Bake in 350 degree F oven for 25 to 30 minutes or until toothpick inserted in centers comes out clean. Cool for 10 minutes in pans on wire racks. Remove from pans and cool cake layers.
Prepare the Creamy White Frosting. Fill and frost layers.
In heavy saucepan, melt semisweet chocolate and shortening over very low heat. Drizzle melted chocolate around top of cake. Garnish with additional sandwich cookies, if you like. Makes 16 servings.
In large bowl, combine shortening and vanilla. Beat with electric mixer on medium to high speed for 30 seconds. Slowly add 2-1/2 cups sifted powdered sugar, beating well. Add milk. Slowly beat in 2 additional cups sifted powdered sugar. Beat in enough additional milk, 1 tablespoon at a time, until frosting is easy to spread.