Reese’s Peanut Butter Cup Blondies are supreme! These luscious blondies are made with a shortbread crust and are filled with Reese’s peanut butter cups. They’re rich and chocolaty but with delightful peanut butter flavor too. Great way to use up leftover candy! Enjoy this dessert for holiday baking, tailgating parties, potlucks and grilling out with friends.