https://www.cutoutandkeep.net/projects/mint-chocolate-cake • Posted by A Bite To Eat
Prepare cake batter according to package directions, using a greased 15-in. x 10-in. x 1-in. baking pan.
Bake at 350° for 25-30 minutes or until a toothpick inserted near the center comes out clean. Cool on a wire rack.
In a large bowl, combine the frosting ingredients until smooth. Spread over cooled cake. Put in freezer to set up mint layer. Putting on chocolate top layer is easiest if this is set firm.
For topping, in a microwave, melt chocolate chips and butter; stir until smooth. Stir in extract. Spread over frosting. Refrigerate until set. Yield: 20-24 servings.