1 pkg. chocolate cake mix
1/3 c. soft butter
1 egg

FILLING:

1 env. unflavored gelatin
1/4 c. boiling water
1 c. vanilla frosting
1/2 tsp. mint extract

FROSTING:

1/2 c. semi-sweet chocolate chips
3 tbsp. butter

Bake base 12 minutes at 350 degrees. Dissolve gelatin in boiling water; cool. In large bowl combine gelatin, frosting and mint extract. Beat until smooth, spread onto cooled crust.

In small saucepan, blend chocolate chips and butter over low heat; melt. Drizzle over filling. Chill until firm.