Best Brownies - cooking recipe

Ingredients

1 c. butter
1 c. brown sugar
1 c. sugar
1 c. cocoa
4 eggs
1 c. flour
2 tsp. baking powder
2 tsp. vanilla
1 c. chopped nuts (optional)

Preparation

Preheat oven to 325\u00b0.
In mixing bowl, beat butter, sugars and cocoa until well blended.
Beat in eggs, one at a time.