Gluten-Free Blueberry Muffins (Banana Oat, Dairy-Free)
These gluten-free blueberry muffins are soft, moist, and naturally sweetened with ripe bananas and a small amount of maple sugar.
They’re made with oats plus a flour blend, which gives them a slightly more substantial texture while still staying tender. The result is a simple muffin that works well for breakfast or snacks without feeling overly sweet or heavy.
If you prefer a a softer, more classic texture, without fruit, try these gluten-free dairy-free yogurt muffins, which work as a good base.
What Makes These Blueberry Muffins Work
This recipe is built to keep the texture soft without relying on overly starchy flour blends.
- balanced fat and liquid keep the muffins moist
- the flour blend provides structure without heaviness
- blueberries add natural moisture and flavor
- the crumb topping adds contrast and prevents a flat texture
Muffins like these also work well as part of a rotation of simple gluten-free breakfast or snack ideas you can prepare ahead.
What Makes These Muffins Different
These muffins are a bit different from typical gluten-free recipes.
- texture +structure (using oats changes the texture slightly compared to standard muffins)
- naturally sweetened with banana
- soft but slightly more dense and filling
- not overly sweet (the bananas help keep the crumb moist too)
- gluten and dairy free
Because of that, they work more like an everyday muffin you can rely on, not just an occasional treat.
The Crumb Topping
The crumb topping adds a light texture contrast and keeps the top from feeling too soft. It’s simple (just a mix of oats, a bit of sugar, and fat) but it changes the overall texture of the muffin. Unlike bakery-style toppings, this one stays light and not overly sweet.
Ingredients (Why They Matter
- Rolled oats (I used gluten free certified oats).
- Flour – you can use regular all purpose flour or my gluten free flour mix (adjust consistency if needed).
- Liquid (water or milk) – or plant based milk (I used a mix of coconut and cashew milk)
- Mashed bananas – the creamy, thickening power of ripe mashed banana is perfect for replacing some of the fat and sugar content.
- Blueberries – use fresh or frozen.
- Butter (a neutral oil or vegan butter will work too for dairy free version) – keeps the crumb soft.
- Egg – the biding agent, for structure.
- Sweetener – light sweetness and brownin, I used maple sugar (use your favorite granulated sugar).
- Baking powder– the rising agent.
- Vanilla extract and salt – for flavor enhancement.
For Crumble Topping You Will Need
- rolled oats
- butter
- sugar
- flour
- cinnamon
How To Make Gluten-Free Blueberry Muffins
- First preheat the oven to 400 degrees F. If necessary, lightly grease the muffin cups or add liners. Set aside.
- Mix wet ingredients: Mash the bananas with a fork. You will get approximately 1 cup from 2 large bananas or 3 smaller bananas. Add to a bowl together with the egg, melted butter, vanilla extract and apple cider vinegar. Mix to combine.
- Soak the oats: To the same bowl, add the oats (1 cup) and fold together until well incorporated. Let them soak for 7-10 min to expand and absorb the moisture. Meanwhile prepare the rest of ingredients.
- Add the rest of dry ingredients: to that add (maple sugar, flour, salt and baking powder). Reserve 1-2 tablespoons of flour to coat the blueberries. Fold in the blueberries (coated with flour). Gently mix everything together.
- Spoon the batter into the muffin tins, filling each about three-fourths full.
- Make and add the crumb topping: add all ingredients in a small bowl. Mix with your hand to combine. Sprinkle the topping evenly on top of the unbaked muffins.
- Bake the muffins: at 400F for 10 minutes then reduce the temperature to 375F and bake for another 20-25 minutes. If you’re using gluten free flour you might need additional 5-7 minutes.
- Cool the muffins in the pan on a rack for 5 minutes, then remove to a wire rack to cool completely. Once cooled the texture improves and stiffens, and the insides aren’t wet anymore.
How To Get Soft Gluten-Free Muffins
If gluten-free muffins turn out dry or dense, it’s usually from a few common issues:
- overmixing the batter (also let the batter rest for a few minutes before baking)
- using too much flour
- not enough moisture (use a balanced fat + liquid ratio)
- overbaking (bake just until set)
Practical Tips
➊ The thicker the muffin batter, the taller and puffier the muffin will be.
➋ Apple cider vinegar gives these muffins a distinctive, slightly tangy flavor that a buttermilk usually gives.
➌ Fresh or frozen blueberries both work. Be warned that if you choose frozen, the muffin batter may get a little of a blueberry-purple color.
➍ Over-mixing the batter can cause tough muffins.
➎ Let the muffins cool completely on a wire rack before eating. The texture will settle and harden once cooled.
Variations
You can easily adjust this recipe:
- skip crumb topping for a simpler muffin
- use frozen blueberries (no need to thaw)
- reduce sweetness slightly if preferred
If you want a different flavor variation, try these gluten-free strawberry muffins or a more hearty option like carrot pineapple muffins.
How To Store
- Room temperature: 2–3 days durinf summer (cold season – they can stay on the kitchen counter (covered) for up to 4 days).
- Refrigerator: up to 5 days
- Freezer: up to 2 months (freezer bag or an air tight container).
- To defrost just place them in the refrigerator overnight, and they’re ready to go in the morning.
Warm slightly before serving to bring back softness.
FAQ’s
Usually from too much flour, overmixing, or not enough moisture. Gluten-free batter benefits from a gentle mix and a short resting time before baking (helps hydrate the flour).
Yes, you can use oat flour directly instead of blending oats.
A balanced blend works best, ideally one that isn’t too high in starch. Whole grain gluten-free blends tend to give better texture and structure.
Yes, you can use a store-bought gluten-free flour blend, but the texture may change.
This recipe uses a mix of oats and my own gluten-free flour blend, so the batter is balanced around both. Store-bought blends are often finer and more starchy, so they may absorb liquid differently and can make the muffins softer, denser, or slightly gummy. Start with the same amount, then adjust only if needed.
You can try replacing oil with applesauce or yogurt, but the texture will be softer and less tender.
This can happen if the batter is too wet, the oven temperature is too low, or they are underbaked. Make sure they are fully set before removing from the oven.
They’re not meant to be a “diet muffin,” but they are more balanced than typical versions: sweetness mostly comes from banana, oats provide fiber, moderate fat, wholesome flour.
For a simple way to build meals like this, see my Build a Balanced Plate Guide.
More Gluten-Free Dairy-Free Muffins
Gluten-Free Blueberry Muffins (Banana Oat, Dairy-Free) + Crumb
Ingredients
Wet ingredients:
- 2 large eggs
- 1 cup mashed bananas - ~ 2 large bananas
- 3 tbsp melted butter - or oil (or butter alternative)
- ½ cup liquid - water or non dairy milk
- 1 tbsp apple cider vinegar
- 1 tsp vanilla extract
Dry ingredients:
- 1 cup rolled oats - I used gluten free certified
- 1 cup flour - see notes for gluten free
- ¼ cup maple sugar - or favorite granulated sugar
- 1½ tsp baking powder
- ⅕ tsp sea salt
- 1 cup blueberries - fresh or frozen
Muffin Crumble Topping (optional)
- 3 tbsp rolled oats - or crushed nuts
- ¼ cup maple sugar
- 1 tbsp flour
- 2 tbsp butter
- ⅓ tsp cinnamon
Instructions
Step 1. Combine wet ingredients:
- Mash the bananas with a fork. You will get approximately 1 cup from 2 large or 3 smaller bananas. Add to a bowl together with the eggs, melted butter/oil, vanilla extract and apple cider vinegar. Mix to combine.
Step 2. Soak the rolled oats:
- To the same bowl, add the oats (1 cup) and fold together until well incorporated. Let them soak for 7-10 min to expand and absorb some moisture. Meanwhile prepare the rest of ingredients or make the crumb.
Step 3. Mix in the dry ingredients:
- To that add the dry ingredients (maple sugar, flour, salt and baking powder). Reserve 1-2 tablespoons of flour to coat the blueberries.
- Fold in the blueberries (coated with flour), gently mix.
- Spoon the batter into the prepared muffin tin, filling each about three-fourths full.
Step 4. Make the crumble topping (optional):
- Add all ingredients in a small bowl. Mix with your hand to combine. Sprinkle the topping evenly on top of each muffin.
Step 5. Bake the muffins:
- Bake the muffins at 400F for 10 minutes then reduce the temperature to 360F and bake for another 25-30 minutes. If you’re using regular flour, you'll need only 20-25 minutes.
- Cool the muffins in the pan on a rack for 5 minutes, then remove to cool completely. Once cooled the texture improves and stiffens.
Notes
Dairy Free & Gluten Free Ingredients
- Dairy free milk: I used a combo of coconut and cashew milk as a substitute for the regular milk. Water also works.
- Instead of regular butter, I used a plant based butter. Unflavored oil, like avocado oil should also work.
- Flour: I used my gluten free flour mix. Using a single type of gluten free flour like rice or sorghum might yield a really crumbly texture and probably dry too.
Extra Tips
- The thicker the muffin batter, the taller and puffier the blueberry banana oatmeal muffin will be.
- Over-mixing the batter can cause tough muffins.
- Fresh or frozen blueberries both work.
Nutrition
The information shown is an estimate provided by an online nutrition calculator.
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Great recipe- made these a few times. Thank you!
I made a batch of these gluten free bluberry muffins this morning and I also added some strawberry. I fed them to my non gluten free kids who ate them up never knowing they’re gluten free )))
Yes these muffins are so good you don’t realize they’re “special” 🙂