Brownies - cooking recipe

Ingredients

3/4 c. margarine, melted
1 1/2 c. sugar
1/2 tsp. vanilla
3 eggs
3/4 c. flour
1/2 c. cocoa
1/2 tsp. baking powder
1/2 tsp. salt
1/2 c. walnuts (optional)

Preparation

Spray pan with Pam.
Preheat oven at 350\u00b0.
Mix all ingredients together.
Bake 25 to 30 minutes.