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Got extra sourdough discard? These sourdough banana muffins turn it into something worth waking up for. Tall, tender, and loaded with deep banana flavor, they get extra flavor from the discard and a buttery cinnamon streusel that crisps up golden on top. No mixer required.

Sourdough discard banana muffins stacked on top of each other. One has chocolate chips.
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If you’re in a berry mood, these sourdough blueberry muffins are another easy, from-scratch recipe worth bookmarking.

Here’s Why This Sourdough Banana Muffin Recipe Works

Use up sourdough discard: The sourdough adds flavor and moisture and keeps the muffins tender.

Bold banana flavor: Two to three ripe bananas bring sweetness and depth, no extra sugar bombs needed.

Crumbly streusel topping: Adds sweet crunch and gives the muffins a bakery-style finish. Perfect for breakfast or a quick snack.

Flexible and fuss-free: The batter rests well overnight if you want a longer fermentation and mix-ins are totally up to you.

Banana sourdough muffins in a basket.

Recipe Tips

Use very ripe bananas: Spotty, nearly black ones bring the best flavor and a tender crumb.

Don’t overmix: Stir just until combined to keep the muffins soft, not tough.

Portion evenly: Fill each cup about ¾ full using a large scoop or measuring cup.

Secure the streusel: Gently press it into the batter so it stays put while baking.

Keep an eye on the bake time: Start checking at 18 minutes so they don’t over bake and get dry.

If you have leftover bananas, make our banana lemon cake or our banana blueberry muffin recipe.

Sourdough Discard Banana Muffins

These sourdough banana muffins are easy to make from scratch. The cinnamon streusel adds the right bit of crunch to the muffin tops, and the whole recipe comes together without a mixer. It’s a simple, homemade way to bake with sourdough discard.

And if you want something chocolatey instead, check out our chocolate sourdough muffins.

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Two crumb-topped muffins stacked, more muffins blurred in the background.
Prep Time: 20 minutes
Cook Time: 20 minutes
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Sourdough Banana Muffins

Sourdough Banana Muffins are the perfect breakfast or snack! Packed with ripe bananas, a hint of cinnamon, and a splash of sourdough starter discard, these muffins are moist and flavorful. Customize them with your favorite mix-ins like chocolate chips or nuts for an extra treat. Bake them right away or let the batter rest overnight in the fridge.

If you make this recipe, please leave a star rating and comment.

Servings: 12 muffins
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Ingredients 

Wet ingredients

  • 2 to 3 bananas, 227 grams, 1 cup mashed
  • 8 tablespoons butter, melted 113 grams
  • 2 tablespoons vegetable oil, 25 grams
  • ¾ cup brown sugar , 160 grams
  • ¼ cup granulated sugar, 50 grams
  • 1 large egg
  • 1 egg yolk
  • ¾ cup sourdough discard, (170 grams)
  • 2 teaspoons vanilla extract

Dry ingredients

  • 1 ¾ cups all-purpose flour, 210 grams
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • 1 teaspoon ground cinnamon
  • 1 teaspoon salt

Optional Extras

  • 1 cup chocolate chips, or other mix ins such as chopped nuts

Crumble Topping

  • ¾ cup all-purpose flour , 90 grams
  • ½ cup granulated sugar , 100 grams
  • ½ teaspoon ground cinnamon
  • 4 tablespoons butter , melted

Instructions 

  • Preheat oven to 350°F. Grease a standard sized muffin tin or line it with paper muffin liners.
  • Combine the mashed banana, melted butter, oil, sugar, brown sugar, egg, egg yolk, sourdough starter, and vanilla in a bowl. Stir well.
  • Sift the flour, baking powder, baking soda, cinnamon, and salt over the wet mixture.
  • Gently fold the dry ingredients into the wet mixture. Fold in any optional extras like nuts or chocolate, if desired.
  • Scoop the batter into 12 muffin cups. You will get a couple of extra muffins if you add nuts or chocolate. 
  • Make the crumble topping: Blend the flour, sugar, and cinnamon together then stir in the melted butter until you have pea-sized clumps. Sprinkle the tops of the muffins with the streusel mixture.
  • Bake 18 to 22 minutes or until a toothpick inserted into the middle comes out clean or with only a few crumbs attached.

Notes

Make-ahead tip: You can let the batter rest overnight before baking. Cover the bowl and refrigerate for up to 12 hours. In the morning, give it a gentle stir, then proceed with the recipe as directed.
Banana ripeness matters: The darker the bananas, the better the flavor and texture. Spotty, soft bananas work best.
Mix-ins are optional: Chocolate chips, chopped nuts, or even a handful of shredded coconut work well. 
Freezer-friendly: Once cooled, these muffins freeze well. Store in an airtight container for up to 2 months. Reheat in the microwave or oven until warmed through.

Nutrition

Serving: 1muffin, Calories: 265kcal, Carbohydrates: 39g, Protein: 3g, Fat: 11g, Saturated Fat: 5g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 3g, Trans Fat: 0.3g, Cholesterol: 50mg, Sodium: 426mg, Potassium: 116mg, Fiber: 1g, Sugar: 20g, Vitamin A: 287IU, Vitamin C: 2mg, Calcium: 62mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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About Dahn Boquist

Dahn Boquist is a retired nurse turned recipe developer, home cook, and baker with years of hands-on experience creating and testing from-scratch recipes. She specializes in whole-food cooking with creative twists on classic dishes. When she’s not in the kitchen, she enjoys sharing meals with family, exploring the Pacific Northwest, and spending time with her grandchildren.

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8 Comments

  1. Kimberly says:

    Hello,

    I’m baking these today (they look great). I’m just wondering where the ingredients and instructions are for the crumb topping?

    1. Dahn Boquist says:

      Thanks so much for catching that. It looks like I did not transfer the crumb topping from my recipe notes, but I’ve just updated it with the ingredients and instructions. You can refresh the page to see the full details now. I’m so sorry for the oversight, and I really appreciate your patience.

    2. Kimberly says:

      @Dahn Boquist,
      I made them and they were AMAZING!!! Thank you for this recipe. I am making them again today! My add in was frozen blueberries 🫐😍. The topping was sooo good! I made it with brown sugar because my husband always prefers that-soooo good.

      1. Dahn Boquist says:

        Thank you! I’m so glad you loved the muffins! Brown sugar in the topping sounds like a delicious twist! And I hope today’s batch is just as amazing!

  2. angiesrecipes says:

    These muffins look fabulous and would be wonderful for either snacks or breakfast.

    1. Dahn Boquist says:

      Thanks Angie, yes, breakfast or any time of the day 😉

      1. Linda says:

        Please share your sourdough starter recipe

        1. Dahn Boquist says:

          Here is the post for making a sourdough starter. It takes at least a week to get it going.