These chewy blondies are soft and buttery and loaded with chocolate chips. Made in just one bowl (no mixer required!) this blondie recipe is the ultimate easy treat!
1/2 cup unsalted butter, melted
1 cup packed light brown sugar
1 large egg + 1 large egg yolk, at room temperature
1 tablespoon vanilla extract
1/4 teaspoon baking powder
1/2 teaspoon salt
1 cup all-purpose flour
1 cup semisweet chocolate chips (optional)