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Overnight Refrigerator Oatmeal with Berries

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If you've ever woken up on a Sunday morning feeling like your brain has been replaced by cotton, you know exactly what I'm talking about. That is why this Overnight Refrigerator Oatmeal with Berries has become my absolute go-to for busy weeknights. It's the kind of breakfast that feels indulgent but comes together while you're sleeping, meaning you can grab a bowl and head straight to work without missing a beat.
I absolutely love using rolled oats here because they strike the perfect balance between creaminess and chew; instant oats often turn into porridge by noon, while steel-cut oats require a pot on the stove that I simply don't have time for. Here is my secret weapon tip: always stir in your milk (or milk alternative) right before you stick the jar in the fridge. If you leave it sitting out too long before chilling, the oats can absorb all the liquid and end up feeling a bit dry when you finally take that first bite, so get that mixture cold fast!
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Prep Time 10 minutes
Total Time 8 hours 10 minutes
Servings: 1 servings
Course: Breakfast
Cuisine: American
Calories: 362
Ingredients Method Nutrition Notes

Ingredients
  

Dry Goods
  • 1 cup old-fashioned rolled oats
  • 1/4 teaspoon ground cinnamon
  • 1/8 teaspoon sea salt trust me, you need it!
Milk Base
  • 3/4 cup whole milk or your favorite non-dairy milk like almond or oat
  • 1 tablespoon maple syrup
  • 1 teaspoon vanilla extract
Fresh Toppings
  • 1/2 cup fresh strawberries hulled and chopped into small chunks
  • 1/2 cup fresh blueberries or frozen if that's all you have—just thaw them first
  • Fresh mint leaves for garnish

Method
 

  1. Mix the Dry Goods: In a large mason jar with a wide mouth (or any lidded container you have), combine the rolled oats, cinnamon, and salt. Give it a quick stir to ensure everything is evenly distributed.
  2. Add the Wet Ingredients: Pour in the milk, maple syrup, and vanilla extract. Stir vigorously until there are no dry pockets of oat left at the bottom of the jar. You want that mixture to look slightly loose; remember, it will thicken up significantly once it chills.
  3. Chill Overnight: Secure the lid tightly on your jar and place it in the refrigerator overnight (or at least 4 hours). This soaking time is crucial as it softens the oats without needing heat, creating a texture that tastes almost like dessert.
  4. Add Fresh Fruit: Just before you're ready to eat, unscrew the lid. Add your fresh strawberries and blueberries now so they stay juicy and vibrant rather than getting soggy in the milk mixture.
  5. Serve and Enjoy: Give the oatmeal a gentle stir one last time to mix in the fruit, then top with a sprig of fresh mint. Dig in while it's still cold!

Nutrition

Serving: 425gCalories: 362kcalCarbohydrates: 58gProtein: 10gFat: 9gSaturated Fat: 4gCholesterol: 12mgSodium: 145mgPotassium: 485mgFiber: 6gSugar: 32gVitamin A: 8IUVitamin C: 75mgCalcium: 180mgIron: 2mg

Notes

Substitutions: Feel free to swap the strawberries for raspberries or peaches if you prefer, though blueberries hold their shape best in cold oatmeal. You can also add a pinch of nutmeg instead of cinnamon if you are feeling fancy.
Storage: This recipe is designed to be made ahead, but it will keep happily in the fridge for up to 3 days if you want to prep your week! Just remember to stir well before eating each day as the fruit may sink to the bottom.
Serving Suggestion: If you are feeling like a treat on top of that healthy base, try sprinkling a tiny handful of chopped walnuts or granola right before serving for some extra crunch.

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