Peanut Butter Swirl Bars
["1/2 c. chunky peanut butter", "1/3 c. butter, softened", "3/4 c. packed brown sugar", "3/4 c. granulated sugar", "2 large eggs", "2 tsp. vanilla extract", "1 c. self rising flour", "2 c. (12 oz.) semi-sweet chocolate chips"]
["Preheat the oven to 350\u00b0.", "Beat first 4 ingredients at medium speed of an electric beater until creamy.", "Add eggs and vanilla, beat well.", "Add flour to butter mixture beating well.", "Spread batter in an ungreased 9 x 13 inch pan.", "Sprinkle with chocolate chips.", "Bake at 350\u00b0 for 5 minutes.", "Remove from oven, run a knife through batter to swirl chocolate.", "Return to oven, bake 30 more minutes.", "Cool completely in pan on a wire rack.", "Cut into bars."]
["chunky peanut butter", "butter", "brown sugar", "sugar", "eggs", "vanilla extract", "flour", "semi-sweet chocolate chips"]