1 c. crunchy peanut butter
2/3 c. butter
1 tsp. vanilla
2 c. firmly packed light brown sugar
3 eggs
1 c. sifted flour
1/2 tsp. salt
1/4 c. dark chocolate chips
1 tbsp. vegetable shortening
1/3 c. white sugar icing

Combine peanut butter, butter and vanilla. Beat with mixer until well blended. Beat in sugar until light and fluffy. Beat in eggs one at a time. Stir in flour and salt until well blended. Spread in greased 13"x9" pan. Bake at 350 degrees for 30 to 35 minutes or until center springs back from touch. Drizzle sugar icing in random pattern over slightly cooled bars. Melt chocolate pieces with butter and drizzle over all in random pattern. 36 bars.