1 c. Skippy peanut butter
1 c. brown sugar
2/3 c. Karo syrup
2 eggs
1 tsp. vanilla
2 1/2 c. flour
1 1/2 tsp. baking powder
1/2 tsp. salt
2 c. (12 oz.) semi-sweet chocolate pieces
1/2 c. butter, softened

In large bowl with mixer at medium speed beat peanut butter, sugar, corn syrup, butter, eggs and vanilla until smooth. Reduce speed; beat in flour, baking powder and salt until well blended. Stir in 1 1/2 cups chocolate pieces. Spread evenly in ungreased 15 x 10 x 1 inch pan. Bake at 350 degrees for 25 minutes or until lightly browned. Cool. Melt remaining 1/2 cup chocolate pieces; drizzle over surface. Cut in bars. Makes 48.