Averie Cooks

-1 Preheat oven to 350F. Line an 8-by-8-inch baking pan with aluminum foil, spray with cooking spray; set aside.
-1 To a large, microwave-safe bowl add the butter and heat on high power to melt, about 1 minute.
-1 Wait momentarily before adding the egg so you don’t scramble it. Add the peanut butter, egg, brown sugar, vanilla, and whisk until smooth.
-1 Add the flour and stir until just combined, don’t overmix.
-1 Add 1/2 cup chocolate chips and stir to combine.
-1 Turn batter out into prepared pan, smoothing the top lightly with a spatula.
-1 Evenly distribute the peanut butter cups over the surface of the batter, pushing each cup down as far as it will go.
-1 Evenly sprinkle the surface with additional chocolate chips, about 1 tablespoon.
-1 Bake for about 22 to 25 minutes, or until done. If you can find a chocolate chip-free patch to test, a toothpick inserted in the center should come out clean, or with a few moist crumbs, but no batter.
-1 Allow bars to cool in pan for at least 1 hour before slicing and serving.