Gluten-Free Cinnamon Streusel Banana Bread

Prep: 10 minCook: 50 min10 servingsmediumBritish
Cinnamon Streusel Banana Bread with Protein Powder

A moist banana bread featuring layers of cinnamon sugar swirl, crunchy streusel topping, and a sweet glaze drizzle. Made with coconut sugar, almond butter, and vanilla protein powder for added nutrition. The combination of ripe bananas and warming cinnamon creates comfort food perfect for breakfast, snacking, or dessert. The streusel adds delightful texture contrast while the protein powder boosts the nutritional profile without compromising the tender crumb.

Ingredients

10 servings
  • 1 lb ripe banana, 4 small or 3 large bananas
  • cups coconut sugar
    brown sugar1:1none

    sweetness variation

    Full guide →
  • 2 tbsp light olive oil or sunflower oil
  • 4 tbsp runny smooth almond butter
    peanut butter1:1nutsdairy-freeadds peanuts

    flavor change

    Full guide →
  • cups coconut yoghurt
    Greek yogurt1:1noneadds dairy

    texture similar

  • 1 tbsp lemon juice
  • 1 tsp vanilla essence
  • 1 ¾ cups plain or GF all-purpose flour, sifted
    gluten-free flour1:1gluten-free

    as noted in recipe

    Full guide →
  • 1 oz vegan vanilla protein
  • 1 ½ tsp baking powder
  • ½ tsp baking soda
  • 1 tsp cinnamon
  • cups coconut or brown sugar
  • cups plain or GF all-purpose flour
    gluten-free flour1:1gluten-free

    as noted in recipe

    Full guide →
  • ½ tsp cinnamon
  • 2 tbsp coconut oil or vegan butter, softened
  • cups powdered sugar
  • 1 tsp water

Instructions

  1. 1

    Preheat oven to 160Fan/350°F and line a 9x5-inch loaf tin with parchment paper

  2. 2

    Prepare cinnamon sugar by stirring together ingredients

  3. 3

    Make streusel by mixing flour, sugar and cinnamon, then press coconut oil or butter into mix with fork to form crumble

  4. 4

    Mash bananas and combine in large bowl with sugar, oil, almond butter, yoghurt, lemon juice and vanilla, whisking until smooth

  5. 5

    Add flour, vanilla protein powder, baking powder, baking soda, cinnamon and salt, whisking to thick batter

  6. 6

    Pour half the batter into tin and sprinkle with all cinnamon sugar mix

  7. 7

    Spoon remaining batter over and smooth top, then drag knife through batter and cinnamon sugar

  8. 8

    Sprinkle with streusel and bake for 50-55 minutes, covering with foil after 30 minutes if browning too much

  9. 9

    Cool for 10 minutes then lift out of tin to cool fully on wire rack

  10. 10

    Mix powdered sugar and water until thick but pourable and drizzle over cooled loaf

Tips

Tip 1

Cover loaf with foil after 30 minutes if streusel browns too quickly during baking

Tip 2

Test doneness with skewer which should come out basically clean when inserted

Tip 3

Allow full cooling before glazing to prevent icing from melting

Good to Know

Storage

Keep in sealed container for 3-5 days in fridge or 2-3 days at room temperature

Make Ahead

Can freeze wrapped well for up to 1 month, defrost at room temperature

Serve With

Slice and serve at room temperature

Common Mistakes

Watch

Don't skip covering with foil to avoid over-browning streusel

Watch

Wait for complete cooling before glazing to prevent melting

Substitutions

Dairy-Free Swaps

almond butter
peanut butter1:1nutsdairy-freeadds peanuts

flavor change

Full guide →

Gluten-Free Swaps

plain flour
gluten-free flour1:1gluten-free

as noted in recipe

Full guide →

General Alternatives

coconut sugar
brown sugar1:1none

sweetness variation

Full guide →
coconut yoghurt
Greek yogurt1:1noneadds dairy

texture similar

Full guide →
Find more substitutions →

FAQ

Can I make this without protein powder?

Yes, replace the 25g protein powder with an equal amount of flour for similar texture.

How do I know when it's fully baked?

Insert a skewer into center - it should come out basically clean with just a few moist crumbs.

Can I freeze individual slices?

Yes, wrap slices individually and freeze up to 1 month. Thaw at room temperature for best texture.