High-Protein Peanut Butter Overnight Oats (Printable)

Creamy peanut butter oats with protein powder soak overnight for a rich, satisfying breakfast ready to grab and go.

# What You'll 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 to 2 teaspoons honey or maple syrup
07 - ½ teaspoon pure vanilla extract
08 - Pinch of fine sea salt
09 - 1 to 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 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 reconstituted powdered peanut butter
16 - Fresh fruit such as banana slices, strawberries, or blueberries
17 - Dollop of Greek yogurt
18 - Toasted nuts or seeds such as peanuts, almonds, or pumpkin 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 with 12 to 14 fluid ounce capacity
02 - Add rolled oats to the jar and stir in chia seeds, flaxseed, cinnamon, and protein powder if using, along with 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, adding water or extra milk if the mixture is too thick
04 - Pour the peanut butter mixture over the oats and dry ingredients, stirring very thoroughly to eliminate any dry pockets
05 - If the mixture is very thick, add a splash more milk and stir again until desired consistency is reached
06 - Stir in sturdy fruits or chocolate chips now if using, reserving delicate fruit to add just before serving
07 - Seal the container and refrigerate for at least 4 hours, preferably overnight for 8 to 12 hours
08 - In the morning, stir well and check the consistency, adding more milk if desired to achieve preferred texture
09 - Top with a spoonful of peanut butter, fresh fruit, yogurt, nuts or seeds, and a drizzle of honey or maple syrup, adding a sprinkle of flaky sea salt if desired
10 - Enjoy straight from the jar or transfer to a bowl, storing refrigerated leftovers for up to 2 days and adding fresh fruit just before serving

# Expert Advice:

01 -
  • It delivers serious protein without a blender or a stovetop, just a jar and a spoon.
  • The peanut butter melts into the oats overnight, creating this velvety texture that feels indulgent but fuels you for hours.
  • You can make three jars on Sunday and ignore breakfast decisions until Thursday.
02 -
  • Stir the oats thoroughly before refrigerating or you'll wake up to a jar with a soup layer on top and a concrete layer on the bottom.
  • Protein powder can make the oats taste chalky if you use too much—stick to one scoop and let the Greek yogurt do the heavy lifting.
  • If the oats are too thick in the morning, don't panic—just stir in milk a tablespoon at a time until they loosen up.
03 -
  • Whisk the peanut butter mixture in a separate bowl first—it's the only way to avoid clumps of peanut butter hiding in the oats.
  • Use a jar with a wide mouth so you can stir easily and add toppings without making a mess.
  • If the oats taste bland, you probably forgot the salt—it's small but essential.
  • Add a pinch of flaky sea salt on top just before eating; it makes the peanut butter flavor pop in a way that feels almost indulgent.
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