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Easy Blueberry Baked Oatmeal Cups: Best Make-Ahead Breakfast

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These easy blueberry baked oatmeal cups are forgiving, flexible, and taste better than the original recipe I was trying to make ever could have. They are perfect for busy mornings, chaotic school days, and those moments when you need breakfast to be ready before your brain is.

Ingredients

Scale
  • 2 cups old-fashioned rolled oats
  • 1 ½ cups milk (whole milk gives the creamiest texture, but oat or almond milk works beautifully for dairy-free)
  • 1 large egg (room temperature if you remember, straight from the fridge if you don’t)
  • ¼ cup maple syrup (honey works too, but maple adds a cozy depth that pairs perfectly with blueberries)
  • 2 tablespoons melted coconut oil or butter (unsalted butter if you’re using salted, skip the extra salt below)
  • 1 teaspoon vanilla extract (pure vanilla makes a difference, but imitation gets the job done)
  • 1 teaspoon baking powder (helps them puff up just a little)
  • ½ teaspoon cinnamon (adds warmth without being overpowering)
  • ¼ teaspoon salt (don’t skip this—it balances the sweetness)
  • 1 cup fresh or frozen blueberries (if using frozen, don’t thaw them first)
  • 2 tablespoons brown sugar (optional, for a crunchy, caramelized crust)
  • ¼ cup chopped pecans or walnuts (optional, adds texture and healthy fats)
  • Shredded coconut (optional, for a tropical twist)

Instructions

  1. Preheat your oven to 375°F (190°C). Line your muffin tin with paper liners or spray generously with cooking spray.
  2. Mix the wet ingredients. In your mixing bowl, whisk together the milk, egg, maple syrup, melted coconut oil (or butter), and vanilla extract. Whisk until the egg is fully incorporated and the mixture looks smooth.
  3. Add the dry ingredients. Pour in the rolled oats, baking powder, cinnamon, and salt. Stir until everything is combined. The mixture will look a little soupy—that’s exactly right.
  4. Fold in the blueberries. Gently stir in your blueberries. If you’re using frozen berries, work quickly—the cold will start to thicken the batter, and you want them distributed evenly.
  5. Fill the muffin cups. Divide the mixture evenly among the 12 muffin cups. I use a ⅓ cup measuring scoop for consistency. Each cup should be about ¾ full. If you’re adding brown sugar or nuts on top, sprinkle them on now.
  6. Bake for 20-22 minutes. The tops should be golden brown and a toothpick inserted in the center should come out clean—or with a few moist crumbs, but not wet batter. If you’re using frozen berries, you might need an extra 2-3 minutes.
  7. Cool in the pan for 5 minutes. This is crucial. The cups need time to set up. If you try to remove them immediately, they’ll fall apart. After 5 minutes, transfer them to a cooling rack.
  8. Serve warm or at room temperature. These are amazing right out of the oven, but honestly, I love them even more after they’ve cooled.

Notes

Don’t overmix. Stop as soon as the dry ingredients are moistened. Let the batter rest for 5 minutes before baking for softer, more cohesive cups. Watch your oven—start checking at 18 minutes. These actually taste better on day two. Store in an airtight container in the refrigerator for up to 5 days. Freeze for up to 3 months.

Nutrition

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Find it online: https://fizzlefork.com/easy-blueberry-baked-oatmeal-cups-best-make-ahead-breakfast/