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Opened paper liner with whole blueberry muffin.
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Easy Oatmeal Blueberry Muffins

When juicy blueberries meet oatmeal muffins you get the best of both worlds. These are super moist, soft, not-too-sweet gorgeous muffins that freeze wonderfully and are ready in under 45 minutes! A great breakfast on the run or an afternoon snack with your favorite beverage.
Course Muffins
Cuisine American
Keyword blueberry oatmeal muffins
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 12 medium
Calories 184kcal

Ingredients

  • 1 cup rolled oats
  • ¾ cup buttermilk or milk at room temperature
  • ¾ cup brown or white sugar packed + extra for sprinkling before baking
  • 1 egg at room temperature
  • 5 tablespoons butter melted
  • ½ teaspoon vanilla extract
  • 1 cup all-purpose flour
  • ¼ teaspoon salt
  • 2 teaspoons baking powder
  • pinch of ground cinnamon
  • 1 ½ cups blueberries fresh or frozen

Instructions

  • Turn on the oven to 350°F (180ºC).
  • Mix 1 cup rolled oats with ¾ cup buttermilk or milk in a large bowl and leave to hydrate while preparing the rest.
  • Line 12 muffin cups with liners. Or butter them.
  • Add ¾ cup brown or white sugar to the oatmeal mixture and mix. Then 1 egg and stir to combine. No need to beat. 
  • Stir in 5 tablespoons butter, melted, ½ teaspoon vanilla extract and pinch of ground cinnamon and combine everything well without beating. 
  • Add the remaining sifted dry ingredients: 1 cup all-purpose flour, ¼ teaspoon salt and 2 teaspoons baking powder to the oat mixture.
  • Fold in 1 ½ cups blueberries with a spatula just until blended. Don’t overmix the batter at this point and try not to crush the berries much.
  • Fill the muffin cups ¾ full, dividing the mixture as evenly as possible. Sprinkle the tops with extra sugar, about ½ a teaspoon for each muffin. 
  • Bake 25-30 minutes, until a cake tester or toothpick comes out dry.
  • Let cool on a wire rack.
  • Store in the fridge after one day or freeze for up to a month, always covered in plastic wrap or in an airtight container.

Notes

Oats: I always use old-fashioned oats (also called traditional or rolled oats) because they have more texture. But you can use quick-cooking oats. The muffins might be a bit chewier and/or wetter as they absorb liquid faster.
Butter: Make sure it's not very hot when you add it. Lukewarm works best because it integrates better as the temperatures of both mixtures are similar.
Baking: they don't brown too much, but you can bake them for a couple of minutes in the end at a higher temperature to achieve a more golden top. They will still be moist.
Freezing: I regularly freeze these muffins since I can't consume them fast enough. Well-wrapped (there's a whole post on freezer baking if you're interested), they keep for a month. When ready to eat, pop the frozen muffin in a medium (350°F or 180°C) oven for 5-10 minutes. Eat warm.
VariationsLiquid: You can use nut milk or orange juice besides buttermilk or milk, as suggested in the recipe. Flavorings: add some lemon or orange zest to the batter, or a ground spice like cinnamon. Berries: Raspberries and blackberries also work wonderfully. Sweeter muffin: These are not too sweet, and you can add a tablespoon of honey or maple syrup to the batter. Or drizzle when eating the warm muffin. Flours: To make a more textured (and a tad more wholesome) blueberry muffin recipe, substitute half the amount of all-purpose flour for finely ground whole wheat flour or white whole wheat flour.

Nutrition

Calories: 184kcal | Carbohydrates: 30g | Protein: 3g | Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Sodium: 182mg | Potassium: 95mg | Fiber: 1g | Sugar: 16g | Vitamin A: 200IU | Vitamin C: 2mg
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