Peanut Butter Swirl Bars
["1/2 c. crunchy peanut butter", "1/3 c. oleo, softened", "3/4 c. brown sugar", "3/4 c. granulated sugar", "2 eggs", "2 tsp. vanilla", "1 c. sifted flour", "1 tsp. baking powder", "1/4 tsp. salt", "1 c. chocolate chips"]
["In a large bowl, combine peanut butter, oleo, and sugars. Beat until creamy.", "Beat in eggs and vanilla.", "Blend in flour, baking powder and salt.", "Spread in a greased 9 x 13 inch pan. Sprinkle chips on top.", "Place in a 350\u00b0 oven for 3 minutes. Remove from oven.", "Run knife through to marbelize.", "Return to oven and bake for 20 minutes."]
["crunchy peanut butter", "oleo", "brown sugar", "sugar", "eggs", "vanilla", "flour", "baking powder", "salt", "chocolate chips"]