2/3 c. butter
2 c. brown sugar
3 eggs
1 tsp. vanilla
2 c. flour
1/2 tsp. salt
1 tsp. baking powder
1 (6 oz.) pkg. chocolate chips
1/2 c. nuts, if desired

Cream shortening, sugar, eggs and vanilla. Add rest of ingredients; mix well and spread in 9 x 13 inch greased pan. Bake at 325 degrees for 25 to 35 minutes. Do not overbake; it makes them dry.