1 c. butter
1 c. peanut butter
1 c. granulated sugar
1 c. firmly packed brown sugar
(Add nuts if desired)
2 eggs
2 c. sifted flour
1 tsp. baking soda
1 (6 oz.) pkg. chocolate chips

Cream butter and peanut butter. Gradually add sugars, beating until fluffy. Add eggs, one at a time, beating until smooth. Sift flour with baking soda. Beat into butter-sugar mixture. Stir in chocolate chips. Drop batter by tablespoonfuls on ungreased cookie sheet. Flatten with a fork that had been dipped in flour. Bake in a preheated 325 degree oven 12 to 15 minutes. Remove from cookie sheet and cool on rack. Store in an airtight container or zippered plastic bag.