Gluten-Free Banana Oat Muffins
Updated Mar 12, 2024, Published Dec 17, 2021
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These Gluten-Free Banana Oat Muffins are a delicious treat for breakfast or brunch or as an afternoon snack with tea or coffee.

Banana Oat Muffins
Ingredients
For the muffins:
- 1½ cups (180 g) gluten-free all-purpose flour blend
- ½ teaspoon (1.5 g) xanthan gum (omit if your flour blend contains it)
- ½ cup (50 g) gluten-free old-fashioned oats
- ½ cup (100 g) granulated sugar
- ¼ cup (50 g) light brown sugar, packed
- 1 teaspoon (4 g) baking powder
- 1 teaspoon (5 g) baking soda
- ½ teaspoon (3 g) kosher or fine sea salt
- 1 teaspoon (2.6 g) ground cinnamon
- 2 large eggs, , room temperature
- 1 cup (240 mL) mashed banana (about 2 medium)
- 1 teaspoon (5 mL) pure vanilla extract
- ⅓ cup (80 mL) avocado oil (or neutral oil of choice)
- ⅔ cup (160 mL) milk (or unsweetened coconut milk beverage)
For the streusel topping:
- 2 tablespoons (30 g) butter, melted (or melted dairy-free butter or coconut oil)
- ¼ cup (50 g) light brown sugar, packed
- 1 tablespoon (8 g) gluten-free all-purpose flour blend
- ⅛ teaspoon (0.4 g) xanthan gum (omit if your flour blend contains it)
- ⅓ cup (30 g) gluten-free old-fashioned oats
Instructions
- Preheat the oven to 400°F and spray a 12-cup muffin pan with gluten-free nonstick spray and line with paper liners.
- In a large bowl, whisk together the flour, xanthan gum, oats, granulated sugar, brown sugar, baking powder, baking soda, salt, and cinnamon. Break up any big brown sugar clumps as necessary.
- In a medium bowl, beat the eggs. Whisk in the mashed banana, vanilla, oil, and milk. Pour the wet ingredients into the dry ingredients and mix well until combined.
- Divide the batter between the 12 muffin cups and set aside while you make the topping. The batter needs to sit at least 10-15 minutes before baking.
- To make the streusel topping, mix together the melted butter, brown sugar, flour, xanthan gum, and oats in a small bowl. Mix until all ingredients are moistened. Sprinkle the topping over the muffins, dividing evenly between all 12.
- Bake for 18-22 minutes or until a toothpick comes out clean. Cool on a wire rack. Store leftover muffins in an airtight container for up to 3 days.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
This recipe for Gluten Free Banana Oat Muffins can also be found on What The Fork Food Blog.