Peanut Butter Banana Muffins

The smell of bananas turning spotted on the counter always makes me reach for the muffin tin. I started making these peanut butter banana muffins during college when I needed something portable between classes. Now they are my go-to for busy mornings when I want breakfast waiting in the freezer.

My roommate freshman year walked in while these were baking and literally dropped her backpack in the hallway. The combination of warm peanut butter and sweet banana fills the whole apartment. Now whenever I make them, I think of her standing there asking if they were ready yet.

Ingredients

• All-purpose flour: Provides the structure that keeps these muffins tender but still light
• Baking powder and baking soda: Work together to give that beautiful dome shape
• Salt: Just a pinch balances the sweetness and makes flavors pop
• Ripe bananas: The blacker the better for natural sweetness and moisture
• Creamy peanut butter: Use the kind you have to stir for the best peanut flavor
• Brown sugar: Adds moisture and a subtle caramel note
• Vegetable oil: Keeps muffins tender longer than butter would
• Eggs: Bind everything together and add richness
• Vanilla extract: Rounds out all the flavors beautifully
• Milk: Thins the batter to the perfect pourable consistency
• Chocolate chips or peanuts: Totally optional but never a bad idea

Instructions

Prep your muffin tin:

Preheat oven to 350°F (175°C) and line your 12 cup muffin pan with paper liners or give it a quick grease

Mix the dry ingredients:

In a medium bowl, whisk together flour, baking powder, baking soda, and salt until well combined

Mash and mix the wet ingredients:

In a large bowl, mash those ripe bananas until mostly smooth, then stir in peanut butter, brown sugar, oil, eggs, and vanilla

Add the milk:

Pour in the milk and whisk until everything is blended and creamy

Combine wet and dry:

Add the flour mixture to the banana mixture and fold gently just until no dry streaks remain

Add your extras:

Fold in chocolate chips or chopped peanuts if you are feeling adventurous

Fill the muffin cups:

Divide batter evenly among the cups, filling each about three quarters full

Bake to golden perfection:

Bake for 18 to 22 minutes until tops are golden and a toothpick comes out clean

Cool them down:

Let rest in the pan for 5 minutes, then move to a wire rack to cool completely

Save

My daughter helped me make a batch last weekend and insisted on adding extra chocolate chips to every single muffin cup. They turned out deliciously decadent. Sometimes breaking the rules is exactly what a recipe needs.

Getting That Peanut Butter Swirl

Dropping a teaspoon of warmed peanut butter on top of each muffin before baking creates those beautiful ribbons of flavor. Use a toothpick to gently swirl it into the batter. It looks impressive and adds an extra hit of peanutty goodness in every bite.

Choosing Your Peanut Butter

Natural peanut butter that requires stirring gives the best authentic flavor but creamy commercial works too. Chunky peanut butter adds amazing texture if you like little peanut surprises throughout. Just make sure whatever you choose is well mixed before measuring.

Making Them Ahead

These muffins freeze exceptionally well, which is why I always double the batch. Wrap cooled muffins individually in plastic wrap, then place them in a freezer bag. They thaw perfectly overnight on the counter or can be warmed in the microwave for 30 seconds.

• Double wrap if freezing for longer than a month to prevent freezer burn
• Label your freezer bag with the date so you know how fresh they are
• Thawed muffins taste just as good as freshly baked ones

Save

There is something so comforting about pulling warm muffins from the oven on a quiet morning. I hope these become a staple in your kitchen too.

Recipe FAQs

→ Can I use natural peanut butter?

Yes, natural peanut butter works well. Just stir it thoroughly before measuring to redistribute any separated oil. The texture may be slightly denser but equally delicious.

→ How ripe should the bananas be?

Use bananas with plenty of brown spots—they're sweeter and mash more easily. Overripe bananas work exceptionally well and add natural moisture to the batter.

→ Can I make these dairy-free?

Substitute plant-based milk for regular milk and use oil instead of butter. The muffins will remain moist and fluffy with these simple swaps.

→ Why shouldn't I over-mix the batter?

Over-mixing develops gluten, making muffins tough and dense. Stir just until the flour disappears—some small lumps are perfectly fine and will bake out.

→ How do I know when they're done baking?

Insert a toothpick into the center of a muffin. If it comes out clean or with just a few moist crumbs, they're ready. The tops should spring back when lightly touched.

→ Can I reduce the sugar?

Yes, you can reduce brown sugar to 1/4 cup since ripe bananas provide natural sweetness. The muffins will still be delicious and slightly less sweet.