Peanut Butter Cup Blondies

If you're a fan of the classic chocolate and peanut butter combo, you'll love these blondies with peanut butter cups.
Preheat the oven to 350 degrees.Spoon the flour into dry measuring cups; flatten with a knife. Combine the flour and the next 3 ingredients (with the addition of salt), mixing well with a whisk. Combine the peanut butter and the next 4 ingredients (through the eggs), mixing well. Add the peanut butter mixture to the flour mixture; mix until smooth. Add the chocolate chips.Place the dough in a 9-inch-square metal baking dish lightly greased with cooking spray, and place the peanut butter cups on top of the dough. Bake at 350 ° C for 19 minutes or until a wooden stick inserted in the middle comes out with wet crumbs sticking to it. Cool in the pan on a wire rack.