Chocolate Peanut Butter Brownies

This is a recipe that I got from grandma. She rated them as good and I agree.

2 oz. unsweetened chocolate
1/2 cup margarine or butter
2 eggs
1 cup sugar
1/2 cup flour
1/2 tsp baking powder

Filling:
1 1/2 c powdered sugar
1/2 cup creamy peanut butter
1/4 cup softened butter or margarine
2-3 T light cream or milk

Glaze:
1 oz semisweet chocolate
1 T margarine

In a small saucepan, melt chocolate and butter over low heat, set aside. In mixing bowl, beat eggs and sugar until light, add flour, baking powder and melted chocolate. Pour into greased 9x9 pan. Bake at 350 for 25 minutes. Cool. For filling, beat powdered sugar, peanut butter and butter in mixing bowl. Stir in cream or milk. Spread over cooled brownies. For the glaze, Melt remaining chocolate and butter in saucepan until smooth. Spread over peanut butter layer. Cover and cool.