These chocolate peanut butter brownies are the ultimate treat, combining gooey brownies with creamy peanut butter swirls. The best part? They’re super easy to make and come together in no time. Perfect for when you’re craving something sweet or need a quick dessert to share!
Line the 8"x8" pan with parchment paper or grease with cooking spray or butter. Set aside.
Combine the brownie mix with water, egg, and oil. Use an electric mixer or whisk and blend until smooth.
Pour the mixture evenly into the square pan.
Spoon small dollops of peanut butter over the top. Use a knife, skewer, or toothpick to gently swirl it into the batter, creating a marbled effect. Be careful not to overmix—you want distinct swirls, not fully blended batter.
Bake at 320℉ for 15-18 minutes or until a toothpick inserted in the center comes out clean.
Cool completely on a wire cooling rack before cutting into squares.