Jumbo Whoopie Pie

Heat oven to 350°F. Line rimmed cookie sheet with cooking parchment paper or silicone baking mat.

In large bowl, beat cake mix, eggs and butter with electric mixer on low speed until well combined. Batter will be thick. Divide batter in half on cookie sheet.

Lightly dampen hands, as batter will be sticky. Form each half into ball, and flatten with hand to 6 inches, creating 2 cakes.

Bake 20 to 25 minutes or until toothpick inserted in center comes out clean. Cool on pan.

Transfer one cake to serving platter. Mix cookie crumbs into container of frosting. Spread entire container of frosting on cake. Top with remaining cake.