For the cookies
1 Devil's Food cake mix, (11 - 12 ounce package- I used Pillsbury)
1/2 cup (1 stick) margarine
For the filling
1/2 cup (1 stick) margarine at room temperature
1/4 cup baking cocoa
2 cups powdered sugar
Preheat oven to 350 degrees F.
Melt one stick of margarine. Allow to cool slightly.
In a small bowl, beat the two eggs.
Pour cake mix into a large mixing bowl. Stir in melted butter and beaten eggs.The dough will be very sticky.
Roll dough into 32 balls about 1 inch in diameter. Place 2 inches apart on ungreased cookie sheets.
Bake for 8 minutes. Cool cookies completely.
For the filling, cream together the remaining stick of margarine, cocoa and powdered sugar. Add milk if necessary so the filling is of spreading consistency.
Spread about 2 teaspoons of filling onto 16 cookies. Top with remaining cookies.
Yields 16 sandwiches