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+ servings
Overnight oats are healthy and easy to prepare.
4.67 from 6 votes

Best Blueberry Overnight Oats

Wake up to a jar full of these Healthy Blueberry Overnight Oats that are loaded with good-for-you ingredients and full of flavor. To make this recipe, quickly combine rolled oats, milk, maple syrup, and fresh blueberries in a Mason jar and chill them in the fridge all night.

Course Breakfast, Dessert, Snack
Cuisine American
Prep Time 5 minutes
Chill Time 2 hours
Total Time 2 hours 5 minutes
Servings 1 serving
Calories 298 kcal


  • cup blueberries fresh or frozen
  • ½ cup oats old-fashioned, rolled, gluten-free if needed
  • 1 tsp. chia seeds
  • ½ cup milk oat, soy, or nut-based milk
  • 2 Tbsp. pure maple syrup or honey


  1. Add the blueberries to an 8-oz. glass Mason jar. Microwave for 60 seconds, or until the blueberries begin to burst.

  2. Add the oats, chia seeds, milk, and sweetener to the jar. Stir the oats with the liquid until well combined.
  3. Refrigerate for at least 4 hours or up to overnight. Serve with additional fresh berries.

Recipe Video

Recipe Notes

  • To prep and store: The recipe is perfect to prepare entirely the day before. After mixing, it will keep in the refrigerator in an airtight, resealable container or covered tightly with plastic wrap for up to 3 to 4 days. However, the oatmeal will get mushy after the first 24 hours. To ensure the best texture every morning of the week, do not add the milk to the jar until the night before serving.
  • To freeze: Freezing is not recommended. The texture of the oats will not be the same and instead will be too watery.

Nutrition Facts
Best Blueberry Overnight Oats
Amount Per Serving
Calories 298 Calories from Fat 45
% Daily Value*
Fat 5g8%
Saturated Fat 1g6%
Trans Fat 0.01g
Polyunsaturated Fat 2g
Monounsaturated Fat 1g
Sodium 87mg4%
Potassium 271mg8%
Carbohydrates 57g19%
Fiber 7g29%
Sugar 23g26%
Protein 7g14%
Vitamin A 29IU1%
Vitamin C 5mg6%
Calcium 87mg9%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.