1/2 c. butter
2 c. light brown sugar
2 eggs, lightly beaten
1 1/2 c. plain flour
2 tsp. baking powder
1/2 tsp. salt
2 tsp. vanilla
1 c. chopped nuts

Melt butter over low heat in a large pot. Stir in sugar and pour beaten eggs slowly into mixture. Sift flour, baking powder and salt together and stir into mixture. Add vanilla and nuts; spread in 9 x 11 inch pan. Bake in 350 degree oven for 20 minutes. While warm sprinkle with powdered sugar. Let cool before cutting.