Peanut Butter Overnight Oats That Stay Easy to Stir

• A higher milk amount gives rolled oats room to hydrate without pulling moisture from the jar. After an overnight rest, the mixture stays spoonable and accepts a fresh splash of milk without becoming thin.
• Whisking peanut butter with milk before adding dry ingredients prevents stubborn pockets at the bottom. The yogurt disperses evenly in that same step, giving every spoonful a mellow peanut flavor and consistent creamy texture.
• Portioning the mixture into jars moves breakfast from refrigerator to desk with one spoon. It is a make-ahead option for mornings that cannot accommodate a bowl, pot, or cleanup.

• 1/2 cup old-fashioned rolled oats (45 g)
• 1/2 cup milk, dairy or nondairy (120 g)
• 1/4 cup plain Greek yogurt (60 g)
• 2 tablespoons creamy peanut butter (32 g)
• 1 tablespoon chia seeds (12 g)
• 1 tablespoon maple syrup (20 g)
• 1/2 teaspoon vanilla extract (2 g)
• 1 pinch kosher salt (1 g)
• 1/2 medium banana, sliced, optional (60 g)
• 2 tablespoons chopped roasted peanuts, optional (16 g)

Ingredient notes

• Old-fashioned rolled oats hold their shape and create a chewy, loose-set base. Quick oats absorb faster and make a softer, thicker jar, so use them only if you prefer less distinct oat texture. Choose certified gluten-free oats when that is needed in your kitchen.
• Creamy peanut butter mixes most smoothly into cold milk and yogurt. Natural peanut butter works too, but stir the jar thoroughly first so separated oil does not leave the oats greasy or the bottom unusually dry after chilling overnight.
• Plain Greek yogurt adds a gentle tang and helps the oats feel creamy without requiring extra nut butter. Regular plain yogurt can replace it, though the finished mixture will be looser. Skip flavored yogurt unless you also reduce the maple syrup.
• Chia seeds are doing quiet structural work here, thickening the milk while keeping the oats movable. Do not add extra chia for a thicker result; start with the listed amount, then adjust tomorrow's jar with oats or milk if needed.

1. 1Choose a roomy jar

   Set out a 16-ounce jar or a bowl with a tight lid. A wider container makes the final stir easier and leaves enough headspace for banana slices or a splash of milk later. Place the jar on a stable counter before measuring, because this is a one-container job.

2. 2Whisk the creamy base

   Add milk, Greek yogurt, peanut butter, maple syrup, vanilla, and salt. Whisk with a fork until the peanut butter has no large streaks and the yogurt looks fully incorporated. Taking a minute here matters: dry oats cannot break up a peanut butter clump once they begin absorbing liquid.

3. 3Add the dry ingredients

   Tip in the rolled oats and chia seeds. Stir from the bottom and scrape the sides, making sure every oat is coated in the milk mixture. The jar should look loose and almost pourable now. It will thicken considerably as the oats and chia hydrate in the refrigerator.

   

4. 4Rest briefly and stir

   Let the uncovered mixture stand on the counter for five minutes, then stir again. This second stir catches chia seeds that may have gathered in small clusters and redistributes oats floating near the top. Cover the jar tightly after the mixture looks even from bottom to surface.

5. 5Chill until set

   Refrigerate the covered jar for at least eight hours, or overnight. The oats need that quiet time to soften while the chia gently thickens the milk. Avoid judging the texture before chilling; a loose mixture at this stage is intentional, not a measuring mistake.

   

6. 6Stir and finish

   In the morning, stir firmly from the bottom to bring the creamy liquid back through the oats. Add one or two tablespoons of milk if you want a looser spoonful. Top with banana, berries, chopped peanuts, or a little cinnamon just before eating so toppings retain their texture.

• Use a jar larger than the finished portion rather than filling a small jar to its rim. The extra room gives you space for a proper morning stir, which is the easiest way to restore an even texture after chilling.
• Measure chia rather than pouring from the bag. An extra spoonful can change a creamy jar into a much firmer one by morning, and correcting an over-thick portion takes more liquid than expected.
• If your peanut butter is cold or especially firm, whisk it with the maple syrup first, then add milk gradually. This prevents a stubborn lump and gives the oats a more uniform flavor throughout.
• Add fresh banana at serving time rather than mixing it in overnight. It keeps the flavor brighter and lets you decide whether the jar needs a sweeter finish after it has chilled.

Serve the oats straight from the jar with banana coins, chopped roasted peanuts, and a pinch of flaky salt. For a less sweet bowl, use berries and cinnamon instead. Pack a separate container of toppings if the jar will travel, then add them just before eating. A toasted English muffin alongside makes this feel more like a full breakfast without requiring another skillet. Keep a spoon in the lunch bag. Small thing, useful.