Preheat your oven to 350°F (190°C)
Take out a bowl to mix your wet ingredients. Add your wet ingredients and mix everything together until smooth and combined. If your peanut butter is stiff, you can microwave it for 15 seconds first.
Take out a large bowl and add your dry ingredients.
Add your wet ingredients into the bowl with the dry ingredients and mix everything together until just combined.
Add your chocolate chips and gently fold them in.
Take out a 12-cup muffin tin and line it with liners or give it a light spray of oil.
Divide your batter evenly across the 12 cups, filling each about ¾ full.
Add additional chocolate chips on top and gently press them into the batter.
Bake on 350°F for 20 to 25 minutes until a toothpick comes out clean and the tops are golden.
Let them cool in the pan for 5 minutes, then transfer them to a wire rack.
Serve.