Reese'S Peanut Butter Bars
["2 c. peanut butter", "1 c. light brown sugar", "1 tsp. vanilla", "1 lb. box confectioners sugar", "1 stick melted butter", "12 oz. chocolate chips"]
["Mix together all ingredients, except chips, and spread in a buttered 13 x 9-inch pan.", "Melt chocolate chips and spread over top.", "Refrigerate."]
["peanut butter", "light brown sugar", "vanilla", "confectioners sugar", "butter", "chocolate chips"]