Butterscotch Brownies

3/4 cups sifted flour
1 teaspoon baking powder
1/2 teaspoon salt
1/4 cup chopped nuts
1/4 cup butter or margarine
1 cup packed brown sugar
1 egg
1/2 tsp vanilla extract

Sift together flour, baking powder and salt. Stir in nutmeats. melt butter in top of double boiler, gradually add sugar and cook for 2 minutes. Remove from heat, and beat in egg and vanilla. Stir in flour-nut mixture. Turn into a greased 8x8 pan and bake in slow oven (300 F). 30 minutes. Cut into 2-inch squares before removing from pan. Makes 16 brownies.