These tender oatmeal blueberry muffins are soft and fluffy and studded with plenty of blueberries for a sweet flavor! These are a great make-ahead breakfast for busy mornings!

oatmeal blueberry muffins
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These oatmeal blueberry muffins are perfect for an easy breakfast on the go! And thanks to the sweet blueberries, they’re a kid-favorite! There are a few steps to making these muffins but it’s not hard to do! And if you can’t get enough of the blueberry and oats combination, be sure to try my blueberry oatmeal! Or if you’re looking for a different fruity twist, try these chocolate chip cherry muffins or my apple blueberry muffins.

How to Make Oatmeal Blueberry Muffins

muffin ingredients

Gather your ingredients and add the oats and buttermilk to a bowl. Let the oats soak for 1 hour.

In a large bowl mix together butter, brown sugar, and egg with an electric mixer.

egg and sugar with mixer

In a separate bowl whisk together all dry ingredients.

dry ingredients being mixed

Combine the egg mixture and oats with the dry mixture. Do this with a spatula or spoon to be sure not to over mix.

mixing muffin batter

Lastly, fold in your blueberries, careful not to burst any of them.

blueberries being stirred into muffin batter

Spoon into muffin cups lined with parchment paper or baking cups.

muffin batter in a pan

Bake for 20-22 minutes until golden brown.

muffins in a baking pan

Let the muffins finish cooling on a wire rack.

blueberry muffins on a cooling rack

How to Store Leftover Muffins

Store leftover muffins in an airtight container for up to 4 days. These muffins can also be frozen. Store in a freezer bag and microwave for 15-20 seconds to thaw when ready to enjoy!

Tips for Perfect Oatmeal Blueberry Muffins

  • Once the muffins are done let cool for 1 minute in the pan, then transfer to a wire rack to finish cooling. This helps prevent soggy muffins.
  • Do NOT over mix the batter. When mixing in the dry ingredients, mix until just combined. It’s ok if there are a few streaks of flour. This helps the muffins rise and stay fluffy.
  • No buttermilk? No problem! Try these vegan blueberry muffins instead, no buttermilk required!
oatmeal blueberry muffin
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oatmeal muffins

Oatmeal Blueberry Muffins

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 7 reviews
  • Author: Liz Thomson
  • Prep Time: 10 mins (Plus 1 hour soaking)
  • Cook Time: 25 mins
  • Total Time: 25 mins
  • Yield: 12 muffins 1x
  • Category: Breakfast
  • Method: Baking
  • Cuisine: Muffins
  • Diet: Vegetarian


These tender oatmeal blueberry muffins are soft and fluffy and studded with plenty of blueberries for a sweet flavor!


  • 1 cup rolled oats
  • 1 cup buttermilk
  • 1/3 cup softened butter
  • 1/2 cup packed brown sugar
  • 1 egg
  • 1 cup all purpose flour
  • 1/2 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 1 1/2 cups fresh blueberries


  1. In a small bowl, combine the rolled oats and buttermilk. Soak the oats for 1 hour.
  2. Preheat the oven to 400 degrees and line a muffin pan with paper liners.
  3. In a large bowl, mix the butter, brown sugar, and egg with a hand mixer.
  4. In a separate bowl, combine the flour, baking soda, baking powder, and salt.
  5. Add the oat mixture to the egg mixture, then stir in the dry ingredients. Do not over mix.
  6. Gently fold in the blueberries until just combined.
  7. Divide into muffin tins and bake for 20-22 minutes.


This post was originally published in June 2014. Updated January 2021.

Looking for more muffin recipes? Here are a few of my favorites!

Vegan Cranberry Pecan Muffins

cranberry muffins

Oatmeal Pear Muffins

oatmeal pear muffins