Chocolate Brownies - cooking recipe

Ingredients

4 sq. Baker's unsweetened chocolate*
3/4 c. (1 1/2 sticks) margarine
2 c. sugar
3 eggs
1 tsp. vanilla
1 c. coarsely chopped nuts

Preparation

*You can substitute 3 tablespoons cocoa plus 1 tablespoon margarine for each chocolate square.