Blueberry Banana Muffins with Streusel Topping (Healthy)

These healthy blueberry banana muffins are made with ripe bananas, fresh or frozen blueberries, and topped with a buttery cinnamon streusel. Easy, one-bowl, and freezer-friendly.

If you love baking with ripe bananas, also try my Peach Streusel Muffins and my Banana Bread with Chocolate Chips - both are just as easy and use the same ripe banana base.

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These healthy blueberry banana muffins are everything I want in a morning muffin. They are soft and moist from the mashed bananas, packed with juicy blueberries, and they have that buttery cinnamon streusel on top that takes them from a good muffin to a genuinely great one. I have been making a version of this recipe for years - every time I have a few overripe bananas sitting on the counter, this is where they end up.

The batter comes together in one bowl, stirred by hand, and takes less than 10 minutes to mix. The key is not overmixing - a lumpy batter is exactly what you want. Overstirring develops the gluten and gives you tough, dense muffins. Stir until just combined, fold in the blueberries gently, and let the oven do the rest.

These muffins use canola oil instead of butter (which keeps them moist without being heavy) and work equally well with fresh or frozen blueberries, so you can make them any time of year. If you love baking with blueberries, my Blueberry Oatmeal Muffins are another great option to keep in rotation.

Why These Muffins Work

• Stirring by hand and stopping early is the technique that makes these light and tender rather than tough.
• Three ripe bananas mean natural sweetness and a moist crumb - you need less added sugar than a standard muffin recipe.
• Oil instead of butter keeps the texture soft even after the muffins cool, and they stay good for several days without drying out.
• The streusel topping creates a slightly crisp, caramelized crust on top that contrasts perfectly with the soft interior. A muffin without streusel is missing something.

Ingredient Notes

• Granulated sugar: ¾ cup is intentionally less than most muffin recipes because the bananas add their own sweetness. The result is a muffin that tastes sweet without being cloying.
• Canola oil: A neutral vegetable oil works here - canola, sunflower, or avocado oil all give the same tender crumb. Do not substitute melted butter one-for-one; the texture will be slightly denser and the muffins will dry out faster.
• Ripe bananas: The riper the better. You want bananas that are deep yellow with plenty of brown spots - the sweetness and moisture in the muffin depends on how ripe they are. If your bananas are not ripe enough, you can bake them unpeeled at 300°F for 15 minutes until the skins turn black.
• Almond milk: Any non-dairy milk works - oat milk, soy milk, or regular dairy milk if you are not keeping these vegan. The milk is mixed with apple cider vinegar to create a quick vegan buttermilk.
• Apple cider vinegar: Mixed with the almond milk, it curdles slightly and acts as a buttermilk substitute - the acidity helps activate the baking soda and tenderizes the crumb. White vinegar also works.
• Vanilla extract: Pure vanilla, not imitation. It rounds out the banana flavor and pairs beautifully with the cinnamon.
• All-purpose flour: Standard all-purpose. Do not pack the flour into the measuring cup - spoon it in and level off. Overpacking flour is the most common reason muffins turn out dense.
• Baking powder: Provides most of the lift. Make sure yours is not expired - an old can of baking powder is a common culprit for flat muffins.
• Baking soda: Works with the acid from the vinegar and the bananas to give additional rise.
• Ground cinnamon: In both the batter and the streusel. Cinnamon and banana is a classic combination - it brings warmth without overpowering the blueberries.
• Salt: Do not skip it. Salt balances the sweetness and brings out the banana flavor.
• Blueberries: Fresh or frozen both work. If using frozen, do not thaw them first - fold them in straight from the freezer to prevent the batter from turning blue-gray. Fresh blueberries give slightly cleaner bursts of flavor; frozen are perfectly fine and more convenient.
• Brown sugar (streusel): Gives the topping a deeper, slightly caramel flavor. Light brown sugar works best here.
• Cold butter (streusel): Cold butter is essential for a crumbly streusel - warm or melted butter will give you a paste instead of a crumble. Work quickly with your fingers to break it into the flour and sugar.

How to Make Blueberry Banana Muffins

1. Preheat oven to 350°F (177°C). Spray a standard 12-cup muffin tin with non-stick cooking spray or line with paper liners.
2. In a small bowl or measuring cup, stir together the almond milk and apple cider vinegar. Set aside for 2 to 3 minutes - it will look slightly curdled, which is exactly right.
3. In a large bowl, mash the bananas very well with a fork until mostly smooth with just a few small lumps. Add the oil, sugar, vanilla, and the almond milk mixture. Stir until combined.
4. Add the flour, baking powder, baking soda, cinnamon, and salt directly to the bowl. Fold with a spatula or wooden spoon until just combined - do not overmix. A lumpy, uneven batter is perfectly fine. Stop the moment the flour disappears.
5. Gently fold in the blueberries with a few strokes, being careful not to crush them.
6. Make the streusel: In a small bowl, combine the brown sugar, flour, and cinnamon. Add the cold butter pieces and use your fingertips to work the butter into the dry ingredients until the mixture is crumbly and holds together in small clumps when pressed. It should feel like damp sand with some larger pieces.
7. Divide the batter evenly among the muffin cups, filling each about ¾ full. Sprinkle the streusel topping generously over each muffin.
8. Bake for 25 to 30 minutes, until the tops are golden and a toothpick inserted into the center comes out clean or with just a few moist crumbs. Cool in the pan for 5 minutes, then transfer to a wire rack.

Tips

• Do not overmix. This is the single most important rule for light, tender muffins. Fold the batter gently and stop as soon as the flour is incorporated. Overmixing develops gluten and makes muffins tough.
• Use very ripe bananas. The darker and more freckled, the better. Underripe bananas will not mash smoothly and will leave the muffins less sweet and less moist.
• Frozen blueberries go in straight from the freezer. Thawed blueberries release too much liquid and can streak the batter purple. Frozen keeps them intact.
• Fill the cups about ¾ full. Muffins need room to dome up as they bake. Overfilled cups spill over and under-filled cups give flat tops.
• Check for doneness at the 25-minute mark. Every oven runs differently. A toothpick into the center (not near a blueberry) should come out with no raw batter. A few moist crumbs are fine.

More Muffin and Banana Recipes

• Banana Muffins - Classic, simple banana muffins with no streusel for when you want something even faster.
• Banana Bread with Chocolate Chips - When you want to use ripe bananas in loaf form instead of muffin form.
• Healthy Zucchini Bread - A heartier banana bread made with zucchini.

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5 from 4 votes

Blueberry Banana Muffins with Streusel Topping

These healthy blueberry banana muffins are made with ripe bananas, fresh or frozen blueberries, and topped with a buttery cinnamon streusel. Easy, one-bowl, and freezer-friendly.

Prep Time10 minutes mins

Cook Time25 minutes mins

Total Time35 minutes mins

Servings: 12 muffins

Calories: 18kcal

Author: Lora

Equipment

• muffin pan

Ingredients

Muffins

• ¾ cup 150g granulated sugar
• ½ cup 120ml canola oil
• 3 very ripe bananas mashed well
• ¼ cup 60ml plain almond milk
• 1 teaspoon apple cider vinegar
• 1 teaspoon pure vanilla extract
• 2 cups 250g all-purpose flour
• 1½ teaspoons baking powder
• ½ teaspoon baking soda
• 1 teaspoon ground cinnamon
• ½ teaspoon salt
• 1 cup 150g fresh or frozen blueberries

Streusel Topping

• 3 tablespoons light brown sugar packed
• 2 tablespoons all-purpose flour
• 1 teaspoon ground cinnamon
• 1 tablespoon cold unsalted butter cut into small pieces

Instructions

• Preheat oven to 350°F (177°C). Spray a 12-cup muffin tin with non-stick cooking spray or line with paper liners.
• Stir almond milk and apple cider vinegar together in a small bowl. Set aside for 2 to 3 minutes.
• In a large bowl, mash bananas until smooth. Add oil, sugar, vanilla, and the almond milk mixture. Stir to combine.
• Add flour, baking powder, baking soda, cinnamon, and salt. Fold with a spatula until just combined - do not overmix. Batter will be lumpy.
• Gently fold in blueberries.
• Make the streusel: combine brown sugar, flour, and cinnamon in a small bowl. Add cold butter and work in with fingertips until crumbly.
• Divide batter among muffin cups, filling ¾ full. Top each with a generous pinch of streusel.
• Bake 25 to 30 minutes until golden and a toothpick inserted in the center comes out clean. Cool 5 minutes in the pan, then transfer to a wire rack.

Nutrition Disclaimer

Please keep in mind that the nutritional information presented below is an approximation and may vary depending on the exact ingredients used.

Notes

 

• Do not overmix the batter - stir only until the flour disappears. Overmixing is the main cause of dense, tough muffins.
• Frozen blueberries go in straight from the freezer without thawing. This prevents them from bleeding purple into the batter.
• The streusel butter must be cold for a crumbly texture. Warm or softened butter will blend in too smoothly and you will lose the crisp topping.
• Fill the muffin cups about ¾ full so the muffins have room to dome without spilling.
• Store at room temperature in an airtight container for up to 3 days, or freeze individually for up to 3 months.

Nutrition

Calories: 18kcal | Carbohydrates: 4g | Protein: 0.1g | Fat: 0.02g | Saturated Fat: 0.003g | Polyunsaturated Fat: 0.01g | Monounsaturated Fat: 0.001g | Sodium: 196mg | Potassium: 8mg | Fiber: 0.2g | Sugar: 3g | Vitamin A: 1IU | Vitamin C: 0.01mg | Calcium: 36mg | Iron: 0.2mg

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