Preheat oven to 350 degrees. Line a muffin pan with muffin liners and set aside.
In a bowl combine the peanut butter with eggs, milk, and maple syrup. Add cinnamon, baking powder, vanilla extract and whisk until incorporated.
Mix in the oats and chocolate chips and let the batter rest for 10 minutes.
Divide the batter between the muffin liners and top with chocolate chips.
Take to the oven and bake for 20 minutes.