1 1/4 stick butter
2 1/3 c. brown sugar
3 eggs
2 1/2 c. flour
2 tsp. baking powder
12 oz. chocolate chips
1/2 c. chopped walnuts

Preheat oven to 350 degrees. Grease 10 x 15 inch jelly roll pan. Beat butter with sugar in large bowl until light and creamy. Add eggs, one at a time, beating well after each. Stir in flour, baking powder, and salt. Blend well. Fold in chips and nuts. Bake for 20 to 25 minutes.