Banana Blueberry Streusel Muffin

These banana blueberry streusel muffins bake up tall, tender, and lightly spiced, with juicy berries and a crisp cinnamon crumb topping.

WHY YOU’LL LOVE THIS RECIPE

  • Tall, bakery-style muffin tops with a crisp streusel crust
  • Moist, soft interior from ripe bananas and oil-based batter
  • Balanced flavor—sweet banana, bright blueberries, warm spice
  • Streusel stays crumbly instead of melting into the batter
  • Works beautifully with fresh or frozen blueberries
  • Reliable, forgiving batter—great for consistent results
  • Stays moist for days without becoming greasy


INGREDIENTS

Streusel Topping

  • 2 ¼ cups all-purpose flour
  • ¾ cup packed dark brown sugar
  • 2 ¼ tsp ground cinnamon
  • ¾ tsp coarse salt
  • ½ cup + 2 tbsp unsalted butter, room temp

Muffins

  • 3 cups all-purpose flour
  • 1 tsp baking soda
  • 1 tsp salt
  • ½ tsp baking powder
  • ½ tsp cinnamon
  • ½ tsp nutmeg
  • 1 ½ cups blueberries (fresh or frozen)
  • 4 very ripe bananas, mashed (about 1 ½ cups)
  • 1 tbsp vanilla extract
  • 3 large eggs, room temp
  • 1 cup neutral oil (vegetable or canola)
  • 2 cups granulated sugar

INGREDIENT NOTES

  • Bananas: The darker they are, the more sugar and moisture they contribute—this directly affects softness.
  • Oil vs butter: Oil creates a more tender crumb that stays moist longer than butter-based muffins.
  • Blueberries: Toss lightly in flour before folding in to help suspend them evenly.


INSTRUCTIONS

1. Make the Streusel (DO THIS FIRST)

Whisk flour, brown sugar, cinnamon, and salt.
Cut in butter until you get pea-sized crumbs with some larger clusters.

👉 Key Step: Chill the streusel for 30 minutes
This is the step that gives these muffins their crisp, bakery-style topping.
Cold butter melts slower → crumbs stay distinct instead of melting flat.

2. Preheat Oven

Preheat to 400°F (important—see next step).
Line 18 muffin cups.

3. Mix Dry Ingredients

Whisk flour, baking soda, baking powder, salt, cinnamon, and nutmeg.

4. Mix Wet Ingredients

In a large bowl, whisk:

  • sugar
  • oil
  • eggs
  • vanilla

Stir in mashed bananas until smooth but slightly textured.

5. Combine Batter

Add dry ingredients to wet and stir just until combined.
The batter should look thick and slightly lumpy.

👉 Overmixing will make muffins dense instead of tender.

6. Fold in Blueberries

Gently fold in blueberries using a spatula.
If using frozen, fold quickly to avoid streaking.

7. Fill Muffin Cups

Fill cups almost to the top (about 90% full).

👉 This is critical for tall muffin tops.

8. Add Streusel

Top generously with chilled streusel.
Lightly press so it adheres.

9. Bake (Bakery Technique)

🔥 Standout Technique: High-Heat Boost Method
Bake at 400°F for 5 minutes, then reduce to 325°F and continue baking 20–25 minutes.

This quick burst of heat causes rapid steam expansion → lifts the batter upward → creates a taller dome before the structure sets.

10. Check for Doneness

  • Tops should be deep golden with crisp crumbs
  • Centers spring back lightly
  • Toothpick comes out with a few moist crumbs, not wet batter

VARIATIONS & SUBSTITUTIONS

  • Add lemon zest for a brighter contrast to banana
  • Swap ½ cup flour for whole wheat flour for a slightly nutty flavor
  • Use brown butter in streusel for deeper caramel notes
  • Add ½ cup chopped walnuts or pecans for texture
  • Reduce sugar by ¼ cup for a less sweet version
  • Use jumbo muffin tin and bake longer for bakery-style presentation





Blueberries, blueberry recipe

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