Moist Peanut Butter Banana Muffins Recipe

These Peanut Butter Banana Muffins are soft, tender and full of peanut butter and banana flavor. Made with whole-grain oat flour and naturally sweetened with maple syrup, they’re a simple one‑bowl breakfast or snack that’s easy to prepare ahead and freezer friendly.

Peanut butter banana muffins on a plate with peanut butter drizzle

Peanut butter and banana are a classic pairing. The creamy peanut butter and ripe bananas give these muffins a moist, satisfying crumb, while oat flour keeps them tender with a gentle, nutty flavor. A handful of dark chocolate chips folded into the batter is optional, but recommended if you like a touch of indulgence.

These muffins are made in one bowl in about ten minutes of prep and bake quickly at 350°F. They’re naturally free of refined sugar when sweetened with maple syrup and can be made dairy‑free by using a non‑dairy milk.

Peanut butter and banana muffins on a wire rack

Why you’ll love this recipe

  • Soft, fluffy muffins with rich peanut butter and banana flavor, studded with chocolate if desired.
  • Made with whole‑grain oat flour and sweetened with pure maple syrup for a naturally sweet result.
  • One‑bowl batter that takes about 10 minutes to mix—perfect for quick meal prep.
  • Freezer‑friendly and easy to pack for breakfasts or snacks.

Recipe ingredients

Simple pantry ingredients come together easily in one bowl. Measure ingredients accurately for best results.

Peanut butter banana muffins recipe ingredients
  • Bananas: 2 large (or 3 medium) — about 1 cup mashed. Use very ripe, spotty bananas for the sweetest flavor.
  • Peanut butter: 1/2 cup. Natural peanut butter (peanuts and salt only) blends best and adds protein.
  • Eggs: 2 large to bind the batter.
  • Maple syrup: 1/2 cup for natural sweetness; substitute honey if desired.
  • Milk: 1/2 cup unsweetened almond milk or your preferred dairy/non‑dairy milk.
  • Vanilla extract: 1 teaspoon (optional, for depth of flavor).
  • Oat flour: 1 1/2 cups. Spoon and level when measuring to avoid dense muffins. Use certified gluten‑free oat flour if needed.
  • Leaveners: 1 1/2 teaspoons baking powder and 1/4 teaspoon baking soda.
  • Salt: 1/4 teaspoon to balance sweetness.
  • Dark chocolate chips: 1/3 cup (optional) or omit for a simpler muffin.

How to make peanut butter and banana muffins

These muffins are straightforward and quick to prepare. Preheat the oven to 350°F (175°C) and line a 12‑cup muffin pan with paper liners.

  1. Mash the bananas in a large bowl until mostly smooth. Add the peanut butter, maple syrup, eggs, almond milk and vanilla. Whisk until the mixture is well combined and slightly glossy.
  2. Add the oat flour, baking powder, baking soda and salt. Whisk until no dry streaks remain, then gently fold in the chocolate chips if using.
  3. Divide the batter evenly among 12 lined muffin cups.
  4. Bake at 350°F for 17–20 minutes, or until the tops are set and a toothpick inserted in the center comes out mostly clean with a few moist crumbs attached. Avoid overbaking to keep the muffins tender.
  5. Cool the muffins in the pan for about 10 minutes, then transfer to a wire rack to cool completely before storing or serving.
How to make peanut butter and banana muffins

Tips for Success

  • Choose ripe bananas: The browner and spotty they are, the more natural sweetness and flavor they add.
  • Use natural peanut butter: It blends smoothly and lets the peanut flavor shine through.
  • Measure oat flour correctly: Spoon into the measuring cup and level off rather than scooping directly from the bag.
  • Don’t overbake: Remove when a toothpick shows a few moist crumbs to keep the crumb soft.
  • Cool completely before storing: This prevents condensation and helps maintain texture.

Storage

  • Store at room temperature in an airtight container for up to 2 days.
  • Refrigerate for up to 1 week to extend freshness.
  • To freeze, cool completely, then pack in a zip‑top bag or airtight container for up to 3 months. Thaw overnight in the refrigerator or warm individual muffins briefly in the microwave before serving.
Peanut butter banana oat muffins cooling on a wire rack

Equipment

  • 12‑cup muffin pan
  • Muffin paper liners
  • Large mixing bowl and whisk (or spatula)
  • Measuring cups and spoons
  • Wire cooling rack

Nutrition (per muffin)

Estimated nutrition provided for guidance:

  • Calories: 207 kcal
  • Carbohydrates: 26 g
  • Protein: 7 g
  • Fat: 9 g (Saturated fat: 3 g)
  • Cholesterol: 31 mg
  • Sodium: 231 mg
  • Fiber: 2 g
  • Sugar: 10 g

More muffin recipes you’ll love

  • Blueberry oatmeal muffins
  • Blueberry banana almond flour muffins
  • Carrot oat flour muffins
  • Pumpkin oat flour muffins
  • Raspberry muffins

Did you try this recipe? If so, please leave a review and share how it turned out.

Peanut butter banana muffins cut in half with chocolate chips exposed.

Recipe at a glance: Makes 12 muffins. Prep time: 10 minutes. Cook time: 17–20 minutes. Total time: about 27 minutes.

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