1/2 c. butter, softened
1/2 c. creamy peanut butter
1/2 c. sugar
1/2 c. packed light brown sugar
2 eggs
1 tsp. vanilla extract
1 1/3 c. all-purpose flour
1/2 tsp. baking soda
1/4 tsp. salt
1 3/4 c. (10 oz. pkg.) Hershey's chocolate chunks

Heat oven to 350 degrees. Lightly grease cookie sheet. In large mixer bowl, cream butter and peanut butter until fluffy; blend in sugar and brown sugar. Beat in eggs, vanilla. In another bowl blend flour, baking soda, salt; stir flour mixture and milk, chocolate chunks into batter until well blended. Drop by rounded tablespoons. Bake 9 to 12 minutes.