Easy Double Chocolate Brownies - cooking recipe

Ingredients

cooking spray
1/2 cup butter or 1/2 cup margarine
1 (12 ounce) package semi-sweet chocolate chips
1 1/2 cups sugar
1 1/2 cups self rising flour
1 teaspoon vanilla
3 eggs
1 cup chopped walnuts (optional)

Preparation

Heat oven to 350 degrees.
Spray 9X13 pan with cooking spray.
Heat margarine and 1 c chocolate chips in sauce pan over low heat stirring until melted.
Stir in sugar, flour, vanilla and eggs until smooth.
Stir in remaining chocolate chips.
Spread in pan and sprinkle with walnuts if desired.
Bake at 350 degrees until center is set (about 30 mins).