Mint Brownies - cooking recipe

Ingredients

2/3 c. margarine
1/2 c. cocoa
1 c. brown sugar
3 eggs
1 tsp. vanilla
1 1/2 c. flour
1 tsp. baking powder
1 tsp. salt

Preparation

Mix together and bake at 350\u00b0 for 20 minutes in a 9 x 13-inch pan.
Cool.
Frost cooled brownies.