1 c. peanut butter
6 tbsp. (3/4 stick) butter, softened
1 1/4 c. sugar
3 eggs
1 tsp. vanilla
1 c. all purpose flour
1/4 tsp. salt
1 (11 1/2 oz.) pkg. (2 c.) milk chocolate chips divided

Preheat oven to 350 degrees. In large mixer bowl, beat peanut butter and butter until smooth, about 1 minute. Add sugar, eggs and vanilla; beat until creamy. Blend in flour and salt. Stir in 1 cup chocolate chips. Spread into ungreased 13 x 9 inch baking pan. Bake 25 to 30 minutes or until edges begin to brown. Immediately sprinkle remaining chocolate chips over cookie layer. Let stand 5 minutes until chips become shiny and soft. Spread evenly over top. Cool completely. Makes about 48 (1 1/2 inch) bars.