These peanut butter banana muffins are soft & moist and loaded with peanut butter! It's easy to make in one bowl and is a delicious breakfast or a snack!
Preheat oven to 400 degrees Fahrenheit (204 degrees Celsius).
Grease 6 wells in each of 2 standard muffin pans, set aside.
In a large bowl, mash the bananas.
Then add the melted butter, peanut butter, sour cream, eggs and vanilla to the bananas and stir to combine.
Add granulated sugar and brown sugar and stir or whisk until the sugars are dissolved.
Add flour, baking powder, baking soda, sea salt and cinnamon and stir until incorporated and there are no lumps/pockets of flour.
If desired, stir in 1 cup of mix-ins like chocolate chips, dried fruit, nuts, peanut butter chips, etc.
Fill 12 wells with batter to the top – 6 in each pan (this allows for muffins to rise).
Bake in preheated oven for 14-17 minutes, or until the tops are golden brown and a toothpick inserted in the center of the muffins comes out clean or with some moist crumbs.
Let cool in the muffin pan on a wire rack for 10 minutes, then use a spoon or knife to release the muffins from the wells and transfer them to a wire rack to cool completely.
Video
Notes
Ingredient Substitution Notes
Salted butter. you can replace up to ¼ cup of the butter with unsweetened applesauce or canola oil.
Sour cream. greek yogurt works well in place of sour cream, and adds extra protein.
All-purpose flour. use gluten-free all-purpose baking flour to make these muffins gluten-free.
Sugars. you can replace the sugars with unrefined coconut sugar or organic cane sugar.
Store/Freeze
Store muffins in an airtight container in the refrigerator for up to 1 week, or in the freezer for up to 2 months. Reheat in the microwave or in a covered dish in the oven set to warm.