Nutella-Swirled Peanut Butter Chip Blondies

"The blondies are super soft, moist, and so fast and easy to make. The batter comes together in one bowl, in 5 minutes, without using a mixer. Peanut butter chips are woven throughout the blondies, providing a nice burst of peanut butter flavor amdist the buttery, caramely dough. The Nutella swirls add depth, richness, and a wonderful pop of chocolate. Ready in under 30 minutes from start to finish, and flexible based on what you have. Substitute chocolate chips for the peanut butter chips or peanut butter swirls for the Nutella swirls...."