The easiest oat flour blueberry muffins are a one-bowl recipe that needs just one gluten free flour to make! Sturdy yet tender and bursting with juicy berries.
In a large bowl, whisk together the oat flour, baking powder, salt, and sugar. Lightly whisk the egg separately, then stir in the beaten egg, milk, and butter. Gently fold in the blueberries.
Spoon the batter evenly into the muffin tin (fill each cup about two-thirds full). Preheat the oven to 375℉ and let the batter rest while the oven heats. Bake the muffins for 20-25 minutes, until a tester comes out clean.
Place the muffin tin on a wire rack to cool for about 10 minutes, then gently turn out the muffins onto the rack to cool completely.
Notes
tips
Rest the batter – Oat flour benefits from a rest before baking off the batter. You can set a timer for 15 minutes, or let the batter rest while the oven preheats to help it hydrate.
Fill the muffin cups ⅔ full for this recipe – While some muffin recipes advise filling the muffin cups to the brim, I’ve found that about ⅔ full is the sweet spot so that they rise nicely but don’t overflow.
Go dairy-free - Instead of butter, use melted coconut oil plus your favorite non-dairy milk to make these muffins dairy-free.
Refined sugar-free - Add honey to the batter instead of the sugar - its lovely, floral sweetness is a wonderful complement to the blueberries.
Make lemon blueberry muffins - Rub the zest of 1 lemon into the sugar to release the citrus oils, then add the rest of the ingredients.
Add poppy seeds - For a little crunch, stir in 3 tablespoons of poppy seeds to make blueberry poppy seed muffins.
A pinch of cinnamon - I love a little extra warming spice in this recipe. A bit of ground cinnamon or ginger is perfect.