High-Protein Peanut Butter Overnight Oats (Printable)

Creamy peanut butter oats with protein powder deliver a rich, satisfying breakfast ready in minutes.

# What You Need:

→ Base

01 - ½ cup old-fashioned rolled oats
02 - ¾ cup unsweetened milk of choice (dairy, soy, or pea milk)
03 - ¼ cup plain Greek yogurt or high-protein non-dairy yogurt
04 - 2 tablespoons natural peanut butter
05 - 1 scoop vanilla or unflavored protein powder
06 - 1-2 teaspoons honey or maple syrup, optional
07 - ½ teaspoon pure vanilla extract
08 - Pinch of fine sea salt
09 - 1-2 tablespoons water or extra milk as needed

→ Optional Add-Ins

10 - 1 tablespoon chia seeds or ground flaxseed
11 - ½ teaspoon ground cinnamon
12 - 2-3 tablespoons diced banana, berries, or apple
13 - 1 tablespoon mini dark chocolate chips or cacao nibs
14 - 1 tablespoon chopped roasted peanuts

→ Toppings

15 - 1 tablespoon peanut butter or reconstituted powdered peanut butter
16 - Fresh fruit such as banana slices, strawberries, or blueberries
17 - Dollop of Greek yogurt
18 - Toasted nuts or seeds
19 - Drizzle of honey or maple syrup
20 - Pinch of flaky sea salt

# How-To Steps:

01 - Select a clean jar or container with a tight-fitting lid and 12 to 14 ounce capacity.
02 - Add rolled oats to the jar. Stir in chia seeds, flaxseed, cinnamon, and protein powder if using. Add a pinch of salt.
03 - In a separate bowl, whisk together milk, Greek yogurt, peanut butter, vanilla extract, and honey or maple syrup until smooth. Add water or extra milk if the mixture is too thick.
04 - Pour the peanut butter mixture over the oats and dry ingredients. Stir very thoroughly, ensuring there are no dry pockets.
05 - If the mixture is very thick, add a splash more milk and stir again.
06 - Stir in sturdy fruits or chocolate chips if using. Reserve delicate fruits for serving.
07 - Seal the container and refrigerate for at least 4 hours, preferably overnight for 8 to 12 hours.
08 - Stir well and check the consistency. Add more milk if desired.
09 - Top with a spoonful of peanut butter, fresh fruit, yogurt, nuts or seeds, and a drizzle of honey or maple syrup. Sprinkle with flaky sea salt if desired.
10 - Enjoy straight from the jar or transfer to a bowl. Refrigerated leftovers keep for up to 2 days.

# Expert Tips:

01 -
  • You mix it in under ten minutes at night and grab a satisfying, protein-rich breakfast straight from the fridge in the morning.
  • The oats turn silky and almost pudding-like after soaking, with peanut butter flavor in every spoonful.
  • It's endlessly customizable with your favorite fruits, nuts, and toppings so you never get bored.
  • Each jar delivers around 40 grams of protein, keeping you full and energized for hours without any midmorning crash.
02 -
  • Stir the oats really well after adding the liquid, I once left dry oats at the bottom and ended up with crunchy surprises that were not pleasant.
  • If your protein powder is very sweet, skip the honey or maple syrup entirely, otherwise the oats can taste more like candy than breakfast.
  • Add a bit more liquid than you think you need, the oats will soak up a surprising amount overnight and you want them creamy, not stiff.
03 -
  • Whisk the peanut butter mixture in a separate bowl first, it blends way smoother than trying to stir it directly into the oats.
  • Use a jar with a wide mouth so you can stir easily and scrape every last creamy bit from the bottom.
  • Add a tiny pinch of flaky sea salt on top right before eating, it makes the peanut butter flavor pop like you wouldn't believe.
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