1 c. peanut butter
1/2 c. softened butter
1 1/2 c. sugar
3 eggs
1 tsp. vanilla
1 c. flour
1/2 tsp. salt
1 1/2 c. chocolate chips

Lightly grease 13 x 9 inch pan. In large bowl, combine peanut butter and butter. Beat with mixer at high speed until well blended. Add sugar, eggs and vanilla. Beat at low speed just until blended. Increase speed and beat until light and fluffy. Add flour and salt. Beat at low speed just until blended.

Beat in 1/2 cup of the chocolate chips. Spread the batter in the prepared baking pan. Bake 30 minutes or until golden brown. Remove from oven. While still hot, sprinkle the remaining chocolate chips over the bars. Let stand for 2 minutes or until chips are melted. Pull a knife through the melted chips to make a pattern on bars. Let cool until chocolate is completely set before cutting.