Preheat your oven to 350 degrees.
Grease a 9×9 inch baking pan with coconut oil spray or PAM. Set aside.
Mix your wet ingredients in one bowl. Mix your dry ingredients in another bowl.
Add your wet ingredients to your bowl with the dry ingredients. Mix until combined.
Pour your batter into the greased baking pan.
Drop your peanut butter on top of the batter and use a fork or spoon to make swirls. My peanut butter was stubborn, so I ended up mixing it into the batter more than intended. It still worked out just fine.
Bake for 30-35 minutes until a toothpick inserted comes out clean.
After baking and while your brownies are still hot, place some dark chocolate chips on top. Use a knife or spatula to spread the melted chocolate across your brownies creating some chocolate swirls. 🙂 You could also use peanut butter chips if you prefer more peanut butter flavor instead.
Let cool and then enjoy!