Peanut butter banana muffins bring together two pantry favorites in one cozy, satisfying bite. They’re soft, tender, and just sweet enough, with a warm peanut flavor that makes them perfect for breakfast or a snack. You don’t need fancy equipment—just a bowl, a whisk, and a few ripe bananas.

Kids love them, adults stash them for busy mornings, and they freeze beautifully. If you’re looking for a muffin that tastes like a treat but still feels wholesome, this is the one.

Why This Recipe Works

• Ripe bananas add moisture and sweetness, so you can use less sugar while getting a soft, tender crumb.
• Peanut butter brings richness and protein, which makes the muffins more filling and flavorful.
• Oil instead of butter helps keep the muffins moist for days without needing to reheat.
• Brown sugar adds a subtle caramel note that pairs perfectly with banana and peanut butter.
• Just the right leavening (baking powder and baking soda) ensures a nice dome without a dense center.

Recipe Card

Peanut Butter Banana Muffins

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Ingredients

  

• 3 medium very ripe bananas (about 1 1/4 cups mashed)
• 1/2 cup creamy peanut butter (stirred, not dry or stiff)
• 1/3 cup neutral oil (canola, avocado, or light olive oil)
• 2 large eggs, room temperature
• 1/2 cup light brown sugar, packed
• 1 teaspoon vanilla extract
• 1 3/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon fine salt
• Optional add-ins: 1/2 cup chocolate chips, chopped peanuts, or

Instructions

 

• Prep your pan and oven. Heat the oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners or lightly grease it.
• Mash the bananas. In a large bowl, mash the bananas with a fork until mostly smooth with a few small lumps.
• Whisk in the wet ingredients. Add peanut butter, oil, eggs, brown sugar, and vanilla. Whisk until smooth and well combined.
• Combine the dry ingredients. In a separate bowl, whisk together flour, baking powder, baking soda, and salt.
• Bring it together. Add the dry mixture to the wet bowl. Stir gently with a spatula until just combined. Do not overmix. Fold in any add-ins.
• Portion the batter. Divide evenly among the muffin cups, filling each about 3/4 full. For a taller dome, let the filled tin rest for 5–8 minutes before baking.
• Bake. Bake 16–20 minutes, or until the tops are set and a toothpick comes out with a few moist crumbs.
• Cool. Let the muffins rest in the pan for 5 minutes, then transfer to a wire rack to cool completely.
• Finish (optional). Drizzle with a little warmed peanut butter or sprinkle with chopped peanuts for crunch.

Storage Instructions

• Room temperature: Store in an airtight container for 2–3 days. Add a paper towel to absorb excess moisture.
• Refrigerator: Keeps well for up to 5 days.
  

  Warm briefly in the microwave to soften.

• Freezer: Wrap individually and freeze for up to 3 months. Thaw at room temp or microwave for 20–30 seconds.

Health Benefits

• Balanced energy: Peanut butter provides healthy fats and protein, while bananas add natural carbs and potassium.
• Less refined sugar: Ripe bananas and brown sugar keep sweetness in check without overdoing it.
• Fiber and satiety: Bananas and peanuts add fiber, which helps you feel full longer.
• Customizable nutrition: You can swap some flour for whole wheat, add flaxseed, or stir in oats for more fiber.

What Not to Do

• Don’t use unripe bananas. They lack sweetness and moisture, leading to bland, dry muffins.
• Don’t overmix the batter. This creates tough, rubbery muffins. Stir just until the flour disappears.
• Don’t overbake. A few extra minutes can dry them out.
  

  Pull them when a toothpick shows moist crumbs.

• Don’t use dry, separated peanut butter without stirring. Oil pockets or dry bits can throw off texture.
• Don’t skip the salt. A little salt sharpens the peanut and banana flavors.

Recipe Variations

• Chocolate Chip: Fold in 1/2 cup mini or regular chocolate chips for a bakery-style treat.
• Whole Wheat Boost: Swap 3/4 cup of the all-purpose flour with white whole wheat flour. Add 1–2 tablespoons milk if the batter seems thick.
• Crunchy Peanut: Use crunchy peanut butter or add 1/3 cup chopped roasted peanuts for texture.
• Oatmeal Banana: Replace 1/2 cup flour with quick oats and add 1 tablespoon honey for a heartier muffin.
• Dairy-Free: This recipe is naturally dairy-free as written. Just check chocolate chip labels if using.
• Gluten-Free: Use a 1:1 gluten-free baking blend with xanthan gum.
  

  Let the batter rest 10 minutes before baking.

• Swirl Topping: Dollop 1/2 teaspoon peanut butter on each muffin and swirl with a toothpick before baking.

FAQ

Can I use natural peanut butter?

Yes, natural peanut butter works well. Make sure it’s well stirred and not overly runny. If it’s very loose, reduce the oil by a tablespoon.

How ripe should the bananas be?

Use bananas with lots of brown spots and a strong banana scent.

The riper they are, the sweeter and moister your muffins will be.

Can I reduce the sugar?

You can reduce the brown sugar to 1/3 cup without affecting texture too much. Extremely low sugar may make the muffins less tender.

What if I only have baking powder?

Use 2 teaspoons baking powder and omit baking soda. The rise will be slightly different, but the muffins will still bake up nicely.

How do I make jumbo muffins?

Fill 6 jumbo wells about 3/4 full and bake at 375°F (190°C) for 22–26 minutes.

Check with a toothpick around 22 minutes.

Can I add protein powder?

Yes. Replace 1/4 cup of the flour with a whey or plant-based protein powder. If the batter feels thick, add 1–2 tablespoons milk.

Why did my muffins sink in the middle?

This often happens from underbaking, stale leaveners, or overmixing.

Check your baking powder/soda freshness and bake until the centers spring back.

How do I keep the tops from getting soggy in storage?

Cool completely before storing and line the container with paper towels above and below the muffins to absorb moisture.

Can I make them without eggs?

Use 2 flax eggs (2 tablespoons ground flaxseed + 5 tablespoons water, rested 10 minutes). Expect a slightly denser crumb but great flavor.

Are these good for toddlers?

Yes, especially if you keep add-ins simple. For little ones, skip large nuts and consider mini muffins for easy portions.

Wrapping Up

Peanut butter banana muffins are simple, reliable, and deeply comforting.

With a bowl, a whisk, and a few ripe bananas, you’ll have warm, fragrant muffins in under 30 minutes. Keep the base recipe as-is, or make it your own with chips, oats, or nuts. Bake a batch today and enjoy an easy, tasty snack all week long.