Berry Crumble Overnight Oats

Active Time:

25 mins

Chill Time:

8 hrs

Total Time:

8 hrs 45 mins

Servings:

Nutrition Profile:

Mediterranean Diet Sesame-Free Weight Loss Nut-Free Soy-Free High-Fiber Vegetarian High-Protein Egg-Free

Oats are rich in heart-friendly fiber, offering long-lasting energy.
Berries provide fiber and vitamin C, making them a power-packed breakfast choice.
To keep the crumble topping crispy, let it cool completely before storing.

You’ll feel like you’re having a dessert parfait for breakfast with these Berry Crumble Overnight Oats. Your favorite antioxidant-rich berries are nestled between layers of chewy oats and protein-packed milk and yogurt. Heart-healthy chia seeds add a little crunch and help gel the oat mixture together. Cinnamon infuses its warm earthiness throughout the oats and crumble topping, which is toasty and crunchy. Keep reading for our expert tips, including how to ensure the oats are the perfect texture.

Tips from the EatingWell Test Kitchen

These are the key tips we learned while developing and testing this recipe in our Test Kitchen to make sure it works, tastes great and is good for you too!

Adding chia seeds to the berry mixture helps absorb any extra liquid, so you won’t have soggy oats.
If you don’t have frozen berries, you can use fresh ones. You could use just one type of berry or even mix in strawberries for a delightful quadruple-berry flavor.
If you prefer not to wait for the oats to set completely before assembling the jars, you can layer the ingredients right away. However, keep in mind that the berry mixture may settle at the bottom.
Make sure not to add the crumble topping to your oats until you’re ready to serve so it doesn’t become soggy.

Nutrition Notes

Oats are rich in cholesterol-lowering fiber, plant protein and iron. The complex carbohydrates in oats will supply your body with energy to help fuel your day.
Berries—all types, from blueberries and strawberries to raspberries—are loaded with disease- and inflammation-fighting antioxidants. They’ve got a notable amount of fiber, which will help keep things moving through your gut. And the vitamin C in berries will help your body better absorb the iron in the oats.
Milk is packed with protein and calcium for strong muscles and bones. It also contains vitamins D and B12, which are necessary for a healthy nervous system.
Yogurt also supplies your body with the same nutrients that milk does, since it’s made from milk. But yogurt has a bonus: probiotics, those gut-loving bacteria that help promote a healthy gut microbiome and ultimately, support overall health.

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Ingredients

1/2x

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Original recipe (1X) yields 4 servings

Oats

1½ cups frozen mixed berries
2 teaspoons chia seeds plus 1 tablespoon, divided
¾ teaspoon light brown sugar plus 1 tablespoon, divided
2 teaspoons lemon juice
1½ teaspoons ground cinnamon, divided
¼ teaspoon salt
2¼ cups whole milk
2 cups old-fashioned rolled oats
½ cup reduced-fat plain strained (Greek-style) yogurt
1 teaspoon vanilla extract

Crumble Topping

3 tablespoons all-purpose flour
1 tablespoon light brown sugar
1½ tablespoons unsalted butter, melted
½ teaspoon ground cinnamon
⅛ teaspoon salt

Directions

Prepare oats: Combine 1½ cups frozen berries, 2 teaspoons chia seeds, ¾ teaspoon brown sugar, 2 teaspoons lemon juice and ¼ teaspoon each cinnamon and salt in a medium saucepan. Cook over medium-low heat, stirring occasionally, until most of the berries have burst, about 6 minutes. Set aside to cool to room temperature, 5 to 8 minutes. Transfer to a small bowl; refrigerate, covered, until ready to use.

Photographer: Jen Causey, Food Stylist: Julian Hensarling, Prop Stylist: Clarie Spollen
Stir 2¼ cups milk, 2 cups oats, ½ cup yogurt, 1 teaspoon vanilla and the remaining 1 tablespoon each chia seeds and brown sugar together in a medium bowl until fully combined. Cover and refrigerate for at least 8 hours.

Photographer: Jen Causey, Food Stylist: Julian Hensarling, Prop Stylist: Clarie Spollen
Prepare crumble topping: Preheat oven to 350°F. Line a small rimmed baking sheet with parchment paper. Combine 3 tablespoons all-purpose flour, 1 tablespoon brown sugar, 1½ tablespoons melted butter, ½ teaspoon cinnamon and ⅛ teaspoon salt in a small bowl; stir until the mixture holds its shape when squeezed together. Spread evenly on the prepared baking sheet.
Bake until fragrant and lightly toasted, 5 to 7 minutes. Let cool completely on the baking sheet, about 15 minutes. Transfer to an airtight container and store at room temperature until ready to use.

Photographer: Jen Causey, Food Stylist: Julian Hensarling, Prop Stylist: Clarie Spollen
To assemble, spoon about ½ cup oat mixture into each of 4 (12-ounce) jars with lids; arrange about 3 tablespoons berry mixture over the oats in each jar. Top each with an additional ½ cup oats. Sprinkle each jar with about 2 tablespoons crumble topping just before serving.

To make ahead

Refrigerate berry mixture (Step 1) for up to 4 days. Refrigerate oat mixture (Step 2) for up to 4 days. Store crumble topping (Step 4) at room temperature for up to 5 days.

Frequently Asked Questions

What ingredients should I avoid when making overnight oats?

Refrain from including any ingredients that will leach out excess moisture over time. This is why we cook the berries and keep them separate from the overnight oats until we are ready to assemble everything.
What other toppings can I add?

We recommend a crumble topping for this recipe, but feel free to get creative with one or more toppings. Some options include granola, fresh fruit or berry preserves, flaked or shredded coconut, crushed nuts (almonds, walnuts, peanuts, pecans, pistachios, etc.) and seeds (pumpkin, sunflower, sesame, poppy seeds, flax, etc.)
How should I store leftovers?

Store leftovers in the refrigerator for 4 days (assembled or unassembled); however, store the crumbled topping separately in an airtight container at room temperature for up to 5 days.

EatingWell.com, April 2025

Nutrition Facts (per serving)

407	Calories
14g	Fat
53g	Carbs
17g	Protein

Nutrition Facts
Servings Per Recipe 4
Serving Size 1 jar
Calories 407
% Daily Value *
Total Carbohydrate 53g	19%
Dietary Fiber 9g	31%
Total Sugars 16g
Added Sugars 6g	12%
Protein 17g	35%
Total Fat 14g	18%
Saturated Fat 7g	33%
Cholesterol 31mg	10%
Vitamin A 153Âµg
Vitamin C 17mg	18%
Vitamin D 2Âµg
Vitamin E 1mg	6%
Folate 50Âµg
Vitamin K 9Âµg
Sodium 280mg	12%
Calcium 301mg	23%
Iron 3mg	16%
Magnesium 103mg	25%
Potassium 522mg	11%
Zinc 3mg	25%
Vitamin B12 1Âµg
Omega 3 1g

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

Additional reporting by

Carrie Myers, M.S.

and

Linda Frahm