Old-Fashioned Overnight Oats Recipe for Easy Mornings

Old-fashioned overnight oats are rolled oats softened in the refrigerator with milk, yogurt, and a little chia until creamy enough to eat with a spoon. This no-cook, make-ahead breakfast is easy to adjust for sweetness and texture, and the basic mixture is ready to top with fruit, nuts, or whatever you enjoy in the morning. Allow at least eight hours for the oats to chill and absorb the liquid.

Ingredients

1 cup (90 g) old-fashioned rolled oats
1 cup (240 ml) milk, dairy or unsweetened plant milk
1/2 cup (120 g) plain yogurt, regular or Greek
1 tablespoon (12 g) chia seeds
1 tablespoon (15 ml) maple syrup, or to taste
1/2 teaspoon (2.5 ml) vanilla extract
1/8 teaspoon (0.75 g) fine salt

Instructions

Combine the dry ingredients. Add the oats, chia seeds, and salt to a medium bowl or a clean jar that holds at least 3 cups (720 ml). Stir briefly so the chia seeds are distributed through the oats instead of clumping in one spot.
Stir in the wet ingredients. Add the milk, yogurt, maple syrup, and vanilla. Mix thoroughly, scraping the bottom and sides so no dry oats remain. The mixture will look fairly loose at this stage; the oats and chia will absorb some of the liquid as they chill.
Cover and refrigerate. Cover the bowl or seal the jar and refrigerate for at least 8 hours, preferably overnight. The oats should be soft throughout, with a thick, spoonable consistency. If you have time, give the mixture another stir after about 15 minutes of chilling to break up any early chia clumps, then return it to the refrigerator.
Adjust and serve. Stir the oats before serving. If they are thicker than you like, mix in milk 1 tablespoon (15 ml) at a time until they reach your preferred consistency. Taste and add a little more maple syrup if desired. Divide between two bowls, or eat directly from individual jars, and add toppings just before serving.

Tips

Use the right oats. Old-fashioned rolled oats soften overnight while keeping enough structure to make a creamy, pleasantly chewy breakfast. Quick oats absorb liquid faster and can become pasty, while steel-cut oats remain quite firm with this method. If steel-cut oats are what you have, use a recipe designed for them or cook them first rather than expecting this timing to work.
Mix chia seeds well. Chia gives the mixture a thicker, more cohesive texture, but seeds that are left in a dry clump can form a gelled lump. Stir carefully before chilling and, if convenient, stir once more after the first 15 minutes. You can omit the chia, but the oats will be looser; add a little less milk at first or plan to adjust the texture in the morning.
Choose your milk and yogurt based on the result you want. Whole milk and regular yogurt make a smooth, creamy mixture; Greek yogurt produces a thicker, tangier one. Unsweetened soy, oat, or almond milk can replace dairy milk in the same amount. Plant-based yogurts also work, though their thickness and sweetness vary, so check the mixture before adding extra sweetener.
Keep the ratio flexible, not the chilling time. The listed amounts make a creamy base, but oats vary slightly by brand and yogurt thickness. Add milk gradually if the mixture seems stiff after chilling instead of pouring in a large amount at once. For a softer result, use a little more milk; for a thicker result, use slightly less or add a spoonful of yogurt in the morning.

Serving Suggestions

Serve the oats cold straight from the refrigerator, or spoon them into a bowl if you want more room for toppings. Fresh berries, sliced banana, grated apple, peaches, or a handful of chopped dates all pair well with the lightly sweetened base. For a bit of crunch, add toasted nuts, pumpkin seeds, granola, or a spoonful of nut butter. If using granola or nuts, add them at the last moment so they do not soften while sitting in the oats.

For a simple fruit-and-nut bowl, top each serving with 1/4 cup (about 35 g) of berries and 1 tablespoon (about 8 g) of chopped almonds. If you prefer a less sweet breakfast, leave the maple syrup out of the base and let ripe fruit provide the sweetness. A small pinch of cinnamon or a little extra vanilla can also make the plain oats feel more aromatic without changing the method. For a grab-and-go morning, portion the mixture into two jars before chilling and keep the toppings in a separate small container.

Variations

Apple cinnamon: Stir 1/4 teaspoon (about 0.7 g) ground cinnamon into the base before chilling. In the morning, top each portion with 1/2 cup (about 60 g) finely chopped apple. A crisp apple adds fresh texture; grated apple blends more closely into the oats and makes each spoonful softer. Add the apple in the morning if you want it to stay crisp.

Peanut butter and banana: Whisk 1 tablespoon (16 g) peanut butter into the milk before combining it with the other ingredients, then top each serving with sliced banana. If the peanut butter is stiff, warm it briefly or stir it with a spoonful of milk first so it disperses evenly. Almond or sunflower seed butter can be used in the same amount, with a slightly different flavor.

Cocoa oats: Stir 1 tablespoon (5 g) unsweetened cocoa powder into the dry oats and chia before adding the milk. Mixing the cocoa with the dry ingredients helps prevent little bitter pockets. Taste the finished oats before serving; cocoa can make the base taste less sweet, so add a little maple syrup if that suits you.

Berry yogurt: Fold 1/2 cup (about 70 g) of fresh or thawed berries into the mixture before refrigerating, or keep them for the topping. Berries added in advance release juice and tint the oats, while berries added just before serving keep their shape and taste brighter. Frozen berries can go in frozen; they will thaw in the refrigerator overnight.

Storage and Reheating

Cover the prepared oats and refrigerate them promptly, within 2 hours of mixing. They are best after at least 8 hours of chilling and keep for 3 to 4 days in the refrigerator when stored in a clean, covered container. If you are preparing several servings, use individual jars or containers and take out only the portion you plan to eat. Keep fresh fruit, crunchy toppings, and other add-ins separate until serving when you want them to retain their texture.

The oats may thicken as they sit, especially when chia seeds are included. Stir in a splash of milk just before eating rather than thinning the whole batch in advance. Discard a serving that has been left at room temperature for more than 2 hours, and do not rely on smell alone to decide whether food has been stored safely. Freezing is possible, but thawed oats may separate or become softer; for the most reliable texture, make only the amount you expect to eat within a few days.

Overnight oats are usually served cold, so reheating is optional. To warm a portion, transfer it to a microwave-safe bowl rather than heating a sealed jar, stir in a little milk, and heat in short intervals, stirring between them. If warming stored leftovers, reheat them to 165°F (74°C), checking with a food thermometer, then let them cool slightly before eating. The texture will be more like soft oatmeal than chilled overnight oats.

Frequently Asked Questions

Can I make overnight oats without yogurt?

Yes. Replace the 1/2 cup (120 g) of yogurt with another 1/2 cup (120 ml) of milk for a simpler, looser mixture. You can also use a thick plant-based yogurt. Without yogurt, the oats will have less tang and creaminess, so start with the listed milk amount and add more only after chilling if needed.

Do overnight oats have to soak for a full night?

They need at least 8 hours in this recipe for the rolled oats and chia to soften fully, so mixing them in the evening works well for breakfast. They can stay refrigerated for up to 12 hours before serving without a problem. A shorter soak may leave the oats chewier and the chia less fully hydrated; if you are short on time, let them sit as long as you can and check the texture before eating.

Why are my overnight oats runny or too thick?

Runny oats may need more time to chill, a little more chia, or a thicker yogurt; stir them and refrigerate longer before changing the recipe. If they are too thick, loosen them with milk a tablespoon at a time. Different brands of oats, yogurt, and plant milk absorb or contribute different amounts of liquid, so small adjustments after chilling are normal.

Can I prepare overnight oats in advance for several mornings?

Yes. Make individual covered portions and refrigerate them for up to 3 to 4 days. For the freshest texture, add sliced banana, delicate berries, nuts, granola, or other toppings on the morning you plan to eat them. If you add fruit to the base ahead of time, expect it to soften and release some juice as it sits.

Can I use quick oats instead of old-fashioned oats?

You can, but the texture will be softer and less chewy, sometimes close to a thick porridge. Quick oats absorb liquid more rapidly, so check them after several hours and add milk if they have become too thick. Steel-cut oats are not a direct substitute here because they need a different preparation and usually more time or cooking to soften.

Can I eat overnight oats warm?

Yes. Transfer a serving to a microwave-safe bowl, add a splash of milk if needed, and warm it in short intervals, stirring until evenly heated. Do not microwave a closed jar, and use a food thermometer to bring stored leftovers to 165°F (74°C). Warming changes the cool, creamy texture, but it is a convenient option on a cold morning.

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

Spotted an error? Tell us and we will correct it (corrections policy).