BUTTER TART BARS Bottom Layer: 1/2 cup butter or margarine 1/3 cup packed brown sugar 1 1/4 cups all purpose flour Crumble butter, sugar and flour well. Press into ungreased 9x9 inch pan. Bake in 350F oven for 10 minutes. Top Layer: 2 eggs 1 cup packed brown sugar 1/4 cup all purpose flour 3/4 teaspoon baking powder 1/4 teaspoon salt 1 1/2 cups raisins 1/2 cup chopped walnuts Beat eggs and sugar together until light and thick. Add rest of ingredients. Stir and spread over bottom layer. Bake in 350F oven for 30 minutes or until centre is almost firm. Cut into 36 squares when cool, or as needed.