Reese Bars
["2 c. peanut butter", "1 c. brown sugar", "1/2 c. butter, melted", "1 tsp. vanilla extract", "1/2 lb. confectioners sugar", "2 c. chocolate chips", "4 Tbsp. butter"]
["Mix first 4 ingredients until smooth. Add confectioners sugar a little at a time (you may not need it all). Spread in a buttered 9 x 13 pan. Put last 2 ingredients in a bowl and microwave until melted. Spread over peanut butter mixture. Let set, then cut into squares."]
["peanut butter", "brown sugar", "butter", "vanilla extract", "confectioners sugar", "chocolate chips", "butter"]