Brownies - cooking recipe

Ingredients

4 oz. unsweetened chocolate
1/2 lb. butter (2 sticks)
2 c. sugar
3 eggs
2 tsp. vanilla
1 c. flour
1 c. walnuts

Preparation

Butter 9-inch pan; dust with flour.
Bake at 350\u00b0 for 40 to 45 minutes.