1 c. peanut butter
6 tbsp. (3/4 stick) butter, softened
1 1/4 c. sugar
3 eggs
1 tsp. vanilla extract
1 c. all-purpose flour
1/4 tsp. salt
12 oz. bag (about 2 c.) chocolate chips

Preheat oven to 350 degrees. In a large mixer bowl beat peanut butter and butter until smooth, about one minute. Add sugar, eggs and vanilla extract; beat until creamy. Blend in flour and salt. Stir in one cup of chocolate chips. Spread batter into (ungreased) 9x13 inch baking pan.

Bake 25-30 minutes or until edges begin to brown. Immediately sprinkle remaining chocolate chips over cookie layer. Let stand in turned-off oven for 3 to 5 minutes or until chocolate chips become shiny and soft. Remove pan to a cooling rack and spread the softened chocolate evenly over the top. When completely cool, cut into 1 1/2 inch bars. (Makes 48 bars.)