Mix flour, baking powder and salt in a large medium bowl; set aside. Beat peanut butter, butter and sugar together in a large bowl with mixer at medium speed until smooth. Blend in corn syrup, eggs and vanilla. Reduce mixer speed; beat in flour mixture. Fold in chocolate chips.
Spread in ungreased 13 x 9 x 2-inch baking pan.
Bake 35 to 40 minutes or until lightly browned. Cool in pan on wire rack. Cut into bars.
About Corn Syrup
See why there’s no substituting Karo® Corn Syrups for treats with a delicate sweetness and smooth texture
Mix flour, baking powder and salt in a large medium bowl; set aside. Beat peanut butter, butter and sugar together in a large bowl with mixer at medium speed until smooth. Blend in corn syrup, eggs and vanilla. Reduce mixer speed; beat in flour mixture. Fold in chocolate chips.
Spread in ungreased 13 x 9 x 2-inch baking pan.
Bake 35 to 40 minutes or until lightly browned. Cool in pan on wire rack. Cut into bars.