A. Smith's Peanut Butter Bars

1 c. peanut butter
1/2 c. butter, melted
2 1/4 c. confectioners sugar
3 Tbsp brown sugar
1/2 tsp. vanilla extract
1/4 tsp. salt
1 (6 oz.) bag chocolate chips
2 Tbsp. oil

Combine first 6 ingredients WITH 2 Tbsp. water in large bowl, beating until well blended and mixture forms a ball. Pat into 7x11 inch pan, smoothing top. Melt and blend chocolate chips and oil together. Spread over peanut butter mixture. Best if stored in refrigerator.