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Overhead shot of three glass mason jars filled with creamy overnight oats layered with fresh strawberries, blueberries, and raspberries, topped with a drizzle of honey and fresh mint leaves on a light linen surface

Overnight Oats with Summer Berries

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Prep Time 10 minutes
Total Time 8 hours 10 minutes
Servings 2 jars
Calories 360 kcal

Equipment

  • Two 16-oz wide-mouth mason jars with lids
  • Medium mixing bowl
  • Measuring cups and spoons
  • Spoon or spatula

Ingredients
  

Oat Base

  • 1 cup old-fashioned rolled oats not quick oats or steel-cut
  • 1 cup full-fat Greek yogurt plain, unsweetened
  • ¾ cup whole milk or almond, oat, or coconut milk
  • 2 tablespoons chia seeds
  • 2 tablespoons pure maple syrup adjust to taste
  • 1 teaspoon pure vanilla extract
  • 1 pinch fine sea salt

Summer Berry Topping

  • ½ cup fresh strawberries hulled and sliced
  • ½ cup fresh blueberries rinsed and dried
  • ½ cup fresh raspberries
  • 1 tablespoon honey for drizzling, optional
  • 4 fresh mint leaves for garnish, optional

Instructions
 

Make the Oat Base

  • In a medium mixing bowl, combine the rolled oats, Greek yogurt, milk, chia seeds, maple syrup, vanilla extract, and a pinch of sea salt. Stir everything together thoroughly until fully combined and no streaks of yogurt remain.
  • Taste the mixture and adjust sweetness by adding a little more maple syrup if desired. The base should taste lightly sweet and pleasantly tangy.
  • Divide the oat mixture evenly between two wide-mouth 16-ounce mason jars (approximately ¾ cup mixture per jar). Use a spoon to gently smooth the tops.

Layer the Berries

  • Layer the fresh berries on top of the oat mixture in each jar. Arrange them however you like — a simple layered look with strawberries first, then blueberries, then raspberries is visually stunning. Alternatively, toss all three berries together and spoon the mixture on top.
  • Seal each jar with its lid and refrigerate for a minimum of 6 hours, or ideally overnight (8 hours). The oats will absorb the liquid and transform into a thick, creamy, pudding-like consistency.

Serve

  • When ready to eat, remove the jars from the refrigerator. If the mixture seems too thick for your liking, stir in a splash of additional milk to reach your preferred consistency.
  • Drizzle with honey and garnish with fresh mint leaves if using. Serve cold, straight from the jar or transferred to a bowl. Enjoy immediately.

Notes

Storage: Sealed jars keep in the refrigerator for up to 5 days. For best results with fresh berries, add blueberries to the jar before refrigerating and layer more delicate berries (strawberries, raspberries) on top just before serving. Frozen berries can be mixed directly into the base — they will thaw overnight and release their juices beautifully into the oat mixture. For a higher protein version, add one scoop of vanilla protein powder to the base mixture and increase milk by 2 tablespoons. Vegan option: Use full-fat coconut yogurt and oat or almond milk.

Nutrition

Calories: 360kcalCarbohydrates: 52gProtein: 18gFat: 9gSodium: 95mgFiber: 9gSugar: 18g
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