2 1/4 c. flour
2 1/2 tsp. baking powder
1/2 tsp. salt
12 oz. chocolate chips
1/2 c. nuts (optional)
3/4 c. butter
1 c. each: sugar and brown sugar
3 eggs
1 tsp. vanilla

Preheat oven to 350°F. Combine flour, baking powder and salt in a small bowl. In large bowl, beat butter, sugars and vanilla until creamy. Add eggs, one at a time; mix well. Gradually beat in flour mixture. Add chocolate chips and nuts. Spread in greased and floured 13 x 9-inch pan.

Bake 35 to 40 minutes. Cool before cutting.

Makes 20 to 24 bars.