High-Protein Peanut Butter Overnight Oats (Printable)

Creamy peanut butter oats with protein boost that soak overnight for an effortless morning meal.

# Ingredient List:

→ Base

01 - ½ cup old-fashioned rolled oats
02 - ¾ cup unsweetened milk of choice
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 to 2 teaspoons honey or maple syrup, to taste
07 - ½ teaspoon pure vanilla extract
08 - Pinch of fine sea salt
09 - 1 to 2 tablespoons water or extra milk for consistency adjustment

→ Optional Add-Ins

10 - 1 tablespoon chia seeds or ground flaxseed
11 - ½ teaspoon ground cinnamon
12 - 2 to 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 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

# Directions:

01 - Select a clean jar or container with a tight-fitting lid having 12 to 14 fluid ounces 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 thoroughly, ensuring there are no dry pockets.
05 - If the mixture is very thick, add a splash more milk and stir again until desired consistency is achieved.
06 - Stir in sturdy fruits or chocolate chips now if using. Reserve delicate fruits to add just before serving.
07 - Seal the container and refrigerate for at least 4 hours, preferably 8 to 12 hours.
08 - In the morning, stir well and check the consistency. Add additional milk if desired for desired texture.
09 - Top with 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; add fresh fruit just before serving.

# Expert Tips:

01 -
  • You genuinely feel full for hours, not just satisfied for twenty minutes like with most quick breakfasts.
  • It tastes like a treat but delivers serious protein, so there's no guilt, just genuine enjoyment.
  • The prep takes ten minutes tops, and then you get to forget about it until morning.
  • One jar means one dish to wash, which is basically life-changing on busy weekdays.
02 -
  • Stir your peanut butter thoroughly before measuring, otherwise you'll end up with a dense, oil-separated mess instead of the creamy base you're after.
  • The oats continue absorbing liquid even after days in the fridge, so that morning stir and texture check actually matters for getting it right.
  • Protein powder clumps if you don't mix it well at the start, so don't skip that first whisking step even though it feels unnecessary.
03 -
  • Use pea or soy milk if you're trying to maximize protein, since they pack nearly double the protein of regular dairy milk and make a noticeable difference in how full you feel.
  • Mix your peanut butter with the liquid components first before combining with oats, this prevents clumping and ensures even distribution throughout.
Go Back