2/3 c. vegetable oil
2 c. sugar
2 eggs
4 sq. melted chocolate
3 c. flour
2 tsp. baking powder
2 tsp. baking soda
1/2 tsp. salt
2 c. boiling water
2 tsp. vanilla
2 boxes thin mints

Mix shortening, sugar and eggs. Add chocolate. Sift dry ingredients and add alternately with boiling water. Add vanilla. Batter will be thin.

Bake at 350 degrees for 30 to 40 minutes. Remove from oven and immediately cover with thin mints. Put under broiler 2 to 3 minutes until mints melt. Swirl mints with a knife to make frosting.