Mint Chocolate Brownies

Brownie:

1/2 cup butter, softened
1/2 cup oil
2/3 cup cocoa powder
2 cups sugar
4 eggs
1 1/2 cups flour
1 tsp vanilla
1/4 tsp salt

Mix butter, cocoa and sugar; beat in eggs and vanilla. Sift flour with salt and stir in. Spread into a greased 9 x 13 pan. Bake at 350 for 20-50 minutes. Cool completely before frosting.

Mint Frosting:

6 Tbs butter, softened
1 lb. powdered sugar
1-3 Tbs milk
1/2 tsp vanilla
1/2 tsp mint extract
Green food coloring

Beat butter and sugar. Add enough milk to make a smooth but thick frosting. Add extracts and food coloring to make light green. Spread over cooled brownies. Chill until firm.

Chocolate Topping:

Melt 1 cup semi-sweet chocolate chips with 4 Tbs butter. Spread over chilled frosting layer. Chill until set.