High-Protein Peanut Butter Overnight Oats (Printable)

Velvety oats with peanut butter, protein powder, and Greek yogurt. Rich, satisfying morning fuel in a jar.

# What You’ll Need:

→ Base

01 - 1/2 cup old-fashioned rolled oats
02 - 3/4 cup unsweetened milk of choice
03 - 1/4 cup plain Greek yogurt
04 - 2 tablespoons natural peanut butter
05 - 1 scoop vanilla or unflavored protein powder
06 - 1-2 teaspoons honey or maple syrup
07 - 1/2 teaspoon pure vanilla extract
08 - Pinch of fine sea salt
09 - 1-2 tablespoons water or extra milk for consistency adjustment

→ Optional Add-Ins

10 - 1 tablespoon chia seeds or ground flaxseed
11 - 1/2 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 including peanuts, almonds, or pumpkin seeds
19 - Drizzle of honey or maple syrup
20 - Pinch of flaky sea salt

# How To Make:

01 - Select a clean jar or container with a tight-fitting lid having 12-14 ounce capacity.
02 - Add rolled oats to the jar and 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 no dry pockets remain.
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 for just before serving.
07 - Seal the container and refrigerate for at least 4 hours, preferably overnight for 8-12 hours.
08 - In the morning, stir well and check consistency. Add more milk if desired to reach preferred 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.

# Top Suggestions:

01 -
  • You wake up to breakfast that's already waiting, no blender or stovetop required.
  • It keeps you full for hours without that mid-morning slump that makes you raid the snack drawer.
  • Every spoonful tastes like peanut butter cookie dough but actually fuels your body instead of crashing it.
  • You can tweak it a dozen ways and it still works, so you never get bored.
02 -
  • Stir the oats really well before refrigerating or you'll end up with a clump of dry oats at the bottom and a watery top.
  • Let the oats sit at least 4 hours, but 8 to 12 hours is when they get that perfect creamy texture.
  • If you're using protein powder, whisk it into the wet ingredients first so it doesn't clump up in the jar.
  • Add a splash more milk in the morning if the oats absorbed too much liquid overnight and turned into sludge.
03 -
  • Use a jar with a wide mouth so you can actually stir the oats without making a mess or leaving dry spots at the bottom.
  • If your protein powder tends to clump, whisk it into the wet ingredients in a separate bowl before pouring it over the oats.
  • Top with a spoonful of peanut butter and a pinch of flaky sea salt right before eating—it makes the whole thing taste like dessert for breakfast.
  • Let the oats sit overnight for the best texture, but if you're in a rush, 4 hours in the fridge will still give you something creamy and satisfying.
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