Overnight Oats Recipe
A no-cook breakfast mixed the night before and finished with fruit in the morning.
What Are Overnight Oats Like?
Mix the rolled oats, milk, yogurt, chia seeds, and a small amount of honey for overnight oats. Refrigerate the covered jar for at least 6 hours, preferably 8 hours. During this time, the oats absorb the liquid and soften while the chia thickens the mixture. Stir in the morning, add the banana, strawberries, and walnuts, and serve cold. No stovetop cooking is needed.
- Yield
- 1 medium breakfast jar
- Servings
- 1 servings
- Total time
- 10 min
- Difficulty
- Easy
- Prep time
- 10 min
- Cook time
- —Refrigerate overnight: At least 6 hr, ideally 8 hr
Ingredients for Overnight Oats
For the Oat Mixture
For Serving
How to Make Overnight Oats
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01
Prepare the jar and ingredients
2 minutesPrepare a clean, lidded 350–450 ml jar. Measure out 45 g rolled oats, 10 g chia seeds, 120 ml milk, 60 g yogurt and 8 g honey. Set the banana, strawberries and walnuts aside to prepare in the morning before serving.
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02
Mix the oats and chia seeds
1 minuteAdd 45 g rolled oats and 10 g chia seeds to the jar. Stir them dry until the seeds are evenly distributed among the oats.
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03
Add the milk, yogurt and honey
2 minutesAdd 120 ml semi-skimmed milk, 60 g plain yogurt and 8 g honey. Reach the spoon all the way to the bottom and stir until the mixture is smooth and evenly moistened. No dry oats should remain at the bottom of the jar.
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04
Redistribute the chia seeds
1 minuteAs the mixture begins to absorb the liquid, stir once more from the bottom with the spoon after about 5 minutes; make sure the chia seeds have not collected in one spot.
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05
Rest the jar in the refrigerator
Close the jar and refrigerate it promptly at 4°C or below. Let it rest for at least 6 hours without cooking, or preferably 8 hours for a creamier, more balanced consistency. This resting time is not added to the active preparation or cooking time.
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06
Check the texture in the morning
1 minuteRemove the jar from the refrigerator, open it and stir several times from the bottom upward. The oats should be soft, and the mixture should have a creamy texture that holds together on the spoon.
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07
Serve with fruit and walnuts
3 minutesThinly slice 60 g banana, chop 50 g strawberries, and roughly chop 8 g walnut kernels. Arrange them over the oat mixture, then sprinkle the walnuts on top last. Serve cold without letting it sit.
Mastery Guide
Review the technical details, common mistakes and correct practices that determine the recipe result.
Critical Tips
Keep the liquid-to-oat ratio balanced
Too little liquid leaves the oats firm, while too much makes the mixture runny.
Best practice: Measure 120 ml milk and 60 g yogurt for 45 g rolled oats.
Choose rolled oats
Thin, quick-cooking oats may break down too much overnight.
Best practice: Choose a product labeled rolled oats or classic oats.
Chill in the refrigerator long enough
The centers of the oats remain dry before the cold hydration is complete.
Best practice: Let the mixture rest in a refrigerator at 4°C or below for at least 6, ideally 8 hours.
Distribute the chia seeds
Dry clumps can gel on the outside while remaining firm inside.
Best practice: 5 minutes after the first stir, scrape the bottom and stir again.
Common Mistakes
Leaving the jar on the counter overnight
If the milk and yogurt remain at room temperature for a long time, the food safety risk increases.
Best practice: Cover the jar and refrigerate it as soon as you finish stirring.
Using steel-cut oats directly
The large, firm grains may not soften enough during a short no-cook soak.
Best practice: Use classic rolled oats for this recipe.
Adding the fruit too early
Sliced bananas can brown, while strawberries can release juice and thin the top layer.
Best practice: Add the fresh fruit on the morning you serve it.
Adding too much sweetener
Too much honey overpowers the fruit’s natural flavor and increases the sugar in the serving.
Best practice: Use 8 g honey in the mixture and let the fruit provide the rest of the sweetness.
Why Does This Happen?
Why do oats soften?
The rolled oats absorb moisture from the milk and yogurt, while starch and soluble fiber bind water.
Best practice: Make sure all the oats are in contact with the liquid, then let them sit for enough time.
Why does chia thicken?
The soluble fiber around chia seeds forms a gel-like structure when it comes into contact with water.
Best practice: Stir twice to distribute the seeds evenly.
Why does yogurt make it feel creamier?
Yogurt’s thick texture gives the mixture a fuller mouthfeel than a mixture made with milk alone.
Best practice: Use plain yogurt that is not too watery, and measure it as specified in the recipe.
Why is chilling important?
As the mixture continues to absorb the liquid, the low temperature helps keep the perishable dairy mixture safe to store.
Best practice: Keep the sealed jar in a refrigerator at 4°C or below.
Mayana Tips
Prepare the toppings in the morning
Fresh fruit cut the night before can lose its appearance and firmness.
Best practice: Cut and add the banana and strawberries just before eating.
Layer the topping
The uniform appearance of the base mixture can make the breakfast presentation look ordinary.
Best practice: Sprinkle the walnuts over the fruit last to keep the textures distinct.
Choose a single-serving container
A large jar allows the mixture to spread out, while a small jar makes it difficult to stir.
Best practice: Choose a lidded jar that holds approximately 350–450 ml.
Stir from the bottom first in the morning
While it rests, the consistency of the top and bottom layers may differ slightly.
Best practice: Before adding the fruit, push the spoon to the bottom and turn it several times.
Ingredients & Measurements
Read the oat type carefully
Rolled oats do not produce the same texture as finely ground oats or steel-cut oats.
Best practice: Buy regular old-fashioned rolled oats.
Know the milk's fat content
Whole milk gives a richer result, while reduced-fat milk produces a relatively lighter one.
Best practice: Use 120 ml reduced-fat milk for the calculated recipe.
Weigh the chia seeds
The volume of a spoonful of seeds can vary by brand and how full the spoon is.
Best practice: Measure 10 g chia seeds per serving.
Choose fresh, non-rancid walnuts
Stale walnuts with a bitter, rancid-oil flavor overpower the delicate milky taste.
Best practice: Chop fresh shelled walnuts just before serving.
Cooking Techniques
Combine the dry ingredients first
Mixing the chia seeds and oats while dry helps the added liquid distribute more evenly.
Best practice: First, mix 45 g oats and 10 g chia seeds in the jar.
Stir in the liquid in two additions
Stirring only from the surface in one pass can leave dry oats at the bottom of the jar.
Best practice: After adding the milk and yogurt, move the spoon from the bottom upward.
Do not mistake cold hydration for applying heat
This recipe uses neither the stovetop nor the oven; the texture changes as the liquid is absorbed.
Best practice: Keep the cooking time at zero, and manage the resting step separately in the refrigerator.
Portion while keeping it cold
Milk-filled jars left at room temperature for a long time may pose a risk.
Best practice: Refrigerate immediately after preparing, and keep it chilled until serving.
How to Store and Make Overnight Oats Ahead
- Serving temperature
Serve cold, straight from the refrigerator.
- Best resting time
Refrigerate for at least 6 hours, ideally 8 hours; stir from the bottom before serving.
- Refrigerator storage
Store the milk-and-yogurt base in a covered container at 4°C or below for preferably 2 days and no more than 3 days from the day it is prepared. Add the fruit and walnuts just before serving.
- Room-temperature limit
Do not leave it at room temperature overnight. Keep it outside the refrigerator for no more than 2 hours when serving; apply a 1-hour limit in very hot conditions.
- Freezing
Freezing is not recommended; the yogurt may separate and the fruit may become watery after thawing.
- Make-ahead steps
Mix the oats, milk, yogurt, chia, and honey the night before and refrigerate them in a lidded jar; prepare the fruit and walnuts in the morning.
- Serving suggestion
In the morning, stir the oats and finish with 60 g sliced banana, 50 g chopped strawberries, and 8 g chopped walnuts.
Nutrition
1 serving: 1 jar (entire recipe); including serving additions
Approximate calculation based on standard food composition averages for the listed ingredients for 1 jar (entire recipe). These values are approximate calculations and vary by brand and fruit ripeness.
Frequently Asked Questions About Overnight Oats
Do overnight oats need to be cooked?
No. In this recipe, old-fashioned rolled oats soften in the milk and yogurt in the refrigerator; no stovetop or oven is needed.
How many hours should overnight oats rest at least?
With these proportions, refrigerate for at least 6 hours, ideally 8 hours, at 4°C or below.
Which rolled oats should I use?
Use classic old-fashioned rolled oats. Quick-cooking oats may become too mushy, while steel-cut oats may not soften enough.
Can I make it without chia seeds?
Yes, but the texture will be more pourable. Because this recipe contains chia, you will need to readjust the liquid ratio if you leave it out.
How many days can overnight oats be stored?
Store in a covered container at 4°C or below for preferably 2 days and no more than 3 days, without the fruit. Add fresh fruit when serving.
Can I use a plant-based drink instead of milk?
Yes; you can use an unsweetened plant-based drink. The texture and nutritional values will change; the nutrition calculation in this file is based on semi-skimmed cow's milk.
Why do overnight oats become too thick?
The oats and chia absorb the milk and thicken the mixture. Using more oats or chia than specified and letting it stand for a long time can make it thicker; weigh the initial amounts.

