Peanut Butter Brownies

1/2 cup peanut butter
1/3 cup butter
1 cup sugar
1/4 cup packed brown sugar
2 eggs
1 cup all-purpose flour
1 tsp. baking powder
1/4 tsp. salt
6 ounces semi-sweet chocolate pieces
1/2 tsp. vanilla extract

Butter a 9 inch square baking pan. Preheat oven to 350 degrees.

Beat together the peanut butter and the butter until well blended. Gradually add the sugars and beat until fluffy. Add eggs one at a time, beating well after each. Add dry ingredients and mix well. Stir in chocolate pieces and vanilla. Spread in prepared baking pan.

Bake 30 - 35 minutes. Cool in pan on a cake rack. Then cut into squares.

Makes 16

Variation: Try adding roasted peanuts to the batter before spreading the pan.