Brownies - cooking recipe

Ingredients

2 sticks butter
2 c. sugar
4 sq. unsweetened chocolate, melted
4 eggs, separated
1 c. flour
1 tsp. baking powder
1/8 tsp. salt
1 tsp. vanilla
1 c. chopped pecans

Preparation

Cream butter and sugar; add melted chocolate.
Add egg yolks, one at a time, beating well after each.
Add flour minus 1 tablespoon, baking powder and salt.
Fold in stiffly beaten egg whites, vanilla and pecans which have been mixed with reserved flour.
Roll into a 9 x 13-inch pan which has been greased on the sides only and lined with brown paper.
Bake at 325\u00b0 for 40 to 45 minutes.
Cool.
Turn out on waxed paper.
Sprinkle with powdered sugar and cut into squares.