Preheat oven to 400. In a small bowl, combine topping. Set aside.
In a large microwaveable mixing bowl, add peanut butter. Microwave for 15-20 seconds. Add remaining ingredients and stir until well combined.
Pour batter into greased mini muffin tins, about ¾ of the way full. Bake for approximately 12 minutes. Check doneness with a toothpick if you are unsure!
Notes
Recipe can be adapted to regular muffin pan size. Baking time may vary.
Recipe by Mom to Mom Nutrition at https://momtomomnutrition.com/food-and-recipes/crunchy-peanut-butter-muffins/