High-Protein Peanut Butter Overnight Oats

Featured in: Moonrise Mornings

These high-protein overnight oats combine creamy peanut butter, Greek yogurt, and protein powder with rolled oats for a satisfying breakfast that delivers 40g of protein per serving. Simply mix all ingredients in a jar, refrigerate overnight, and wake up to a ready-to-eat meal. Customize with fresh fruit, nuts, or a drizzle of honey for added flavor and texture.

Updated on Fri, 30 Jan 2026 16:09:28 GMT
In a clear jar, creamy high-protein peanut butter overnight oats are layered with ripe banana slices and chopped roasted peanuts for a hearty breakfast.  Save It
In a clear jar, creamy high-protein peanut butter overnight oats are layered with ripe banana slices and chopped roasted peanuts for a hearty breakfast. | zetluna.com

Velvety oats soak up creamy peanut butter, vanilla, and a boost of protein, transforming overnight into a rich, satisfying breakfast. Topped with fruit or nuts, these oats deliver a nourishing, grab-and-go start to your day. This easy American-style recipe is perfect for those seeking a high-protein, vegetarian, and potentially gluten-free breakfast solution.

In a clear jar, creamy high-protein peanut butter overnight oats are layered with ripe banana slices and chopped roasted peanuts for a hearty breakfast.  Save It
In a clear jar, creamy high-protein peanut butter overnight oats are layered with ripe banana slices and chopped roasted peanuts for a hearty breakfast. | zetluna.com

Preparing this breakfast is as simple as mixing your ingredients in a jar and letting time do the work. With 600 calories and balanced fats, it is designed to keep you fueled through your busiest mornings without any cooking required.

Ingredients

  • Base: ½ cup (45 g) old-fashioned rolled oats, ¾ cup (180 ml) unsweetened milk of choice (dairy, soy, or pea milk), ¼ cup (60 g) plain Greek yogurt, 2 tbsp (32 g) natural peanut butter, 1 scoop (20–30 g) vanilla or unflavored protein powder, 1–2 tsp (5–10 ml) honey or maple syrup, ½ tsp pure vanilla extract, pinch of fine sea salt, 1–2 tbsp water or extra milk as needed.
  • Optional Add-Ins: 1 tbsp chia seeds or ground flaxseed, ½ tsp ground cinnamon, 2–3 tbsp diced banana, berries, or apple, 1 tbsp mini dark chocolate chips or cacao nibs, 1 tbsp chopped roasted peanuts.
  • Toppings: 1 tbsp peanut butter, fresh fruit (banana, strawberries, blueberries), dollop of Greek yogurt, toasted nuts or seeds, drizzle of honey or maple syrup, pinch of flaky sea salt.
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Instructions

Step 1
Select a clean jar or container with a tight-fitting lid (12–14 oz / 350–400 ml capacity).
Step 2
Add rolled oats to the jar. Stir in chia seeds, flaxseed, cinnamon, and protein powder if using. Add a pinch of salt.
Step 3
In a separate bowl, whisk together milk, Greek yogurt, peanut butter, vanilla extract, and honey or maple syrup (if using) until smooth. Add 1–2 tbsp water or extra milk if the mixture is too thick.
Step 4
Pour the peanut butter mixture over the oats and dry ingredients. Stir very thoroughly, making sure there are no dry pockets.
Step 5
If the mixture is very thick, add a splash more milk and stir again.
Step 6
Stir in sturdy fruits or chocolate chips now, if using. For delicate fruit, add just before serving.
Step 7
Seal the container and refrigerate for at least 4 hours, preferably overnight (8–12 hours).
Step 8
In the morning, stir well and check the consistency. Add a bit more milk if desired.
Step 9
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.
Step 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.

Zusatztipps für die Zubereitung

For extra protein, use high-protein milk like soy or pea milk alongside thick Greek yogurt. If you prefer a thicker, pudding-like texture, include chia seeds and slightly less milk; for a looser texture, stir in extra milk just before eating.

Varianten und Anpassungen

To make this recipe vegan, use plant-based milk and yogurt, vegan protein, and maple syrup. You can lower the sugar content by skipping sweeteners and relying on ripe fruit or vanilla protein powder for sweetness. Feel free to swap peanut butter for almond, cashew, or mixed nut butter.

Serviervorschläge

Enhance your oats by topping them with fresh banana slices, blueberries, or strawberries. A dollop of Greek yogurt and a sprinkle of toasted pumpkin seeds or almonds adds great texture. Finish with a drizzle of honey and a pinch of flaky sea salt to bring out the peanut butter flavor.

A spoonful of velvety high-protein peanut butter overnight oats is topped with blueberries and a drizzle of honey beside a cozy mug of coffee.  Save It
A spoonful of velvety high-protein peanut butter overnight oats is topped with blueberries and a drizzle of honey beside a cozy mug of coffee. | zetluna.com

These high-protein peanut butter overnight oats are a reliable way to start your day with a balanced, delicious meal. With minimal effort and maximum nutrition, they are sure to become a staple in your morning routine.

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Common Questions About Recipes

Can I make these oats ahead for the week?

While best enjoyed within 2 days, you can prepare the base mixture for up to 3 days in advance. Add fresh fruit and toppings just before serving to maintain optimal texture and freshness.

What type of protein powder works best?

Both whey and plant-based protein powders work well. Vanilla-flavored protein powder adds natural sweetness, while unflavored blends seamlessly into the peanut butter base without altering the taste.

How can I make these oats vegan?

Simply substitute plant-based milk, non-dairy yogurt with high protein content, vegan protein powder, and use maple syrup instead of honey. The texture and protein content remain excellent with these swaps.

Why are my overnight oats too thick or too thin?

Oat thickness depends on the milk-to-oat ratio and resting time. For thicker oats, add chia seeds and use less liquid. For a looser consistency, stir in extra milk before serving until you reach your preferred texture.

Can I use a different nut butter?

Absolutely. Almond butter, cashew butter, or mixed nut butters all work beautifully. Each variety brings its own unique flavor while maintaining the creamy texture and protein boost.

Do I need to use Greek yogurt?

Greek yogurt adds creaminess and extra protein, but you can substitute with high-protein non-dairy yogurt or use additional milk and an extra half scoop of protein powder to maintain the protein content.

High-Protein Peanut Butter Overnight Oats

Protein-packed overnight oats with peanut butter, Greek yogurt, and vanilla. Perfect grab-and-go breakfast.

Prep Time
10 mins
Time to Cook
480 mins
Overall Time
490 mins
Authored by Clara

Recipe Type Moonrise Mornings

Skill Level Required Easy

Cuisine Type American

Recipe Output 1 Number of Portions

Dietary Needs Veggie-Friendly

The Ingredients You'll Need

Base

01 ½ cup old-fashioned rolled oats
02 ¾ cup unsweetened milk of choice
03 ¼ cup plain Greek 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

01 1 tablespoon chia seeds or ground flaxseed
02 ½ teaspoon ground cinnamon
03 2 to 3 tablespoons diced banana, berries, or apple
04 1 tablespoon mini dark chocolate chips or cacao nibs
05 1 tablespoon chopped roasted peanuts

Toppings

01 1 tablespoon peanut butter or reconstituted powdered peanut butter
02 Fresh fruit such as banana slices, strawberries, or blueberries
03 Dollop of Greek yogurt
04 Toasted nuts or seeds such as peanuts, almonds, or pumpkin seeds
05 Drizzle of honey or maple syrup
06 Pinch of flaky sea salt

Step-by-Step Instructions

Step 01

Prepare container: Select a clean jar or container with a tight-fitting lid, approximately 12 to 14 fluid ounces in capacity

Step 02

Combine dry ingredients: Add rolled oats to the jar and stir in chia seeds, flaxseed, cinnamon, and protein powder if using. Add a pinch of salt

Step 03

Prepare wet mixture: 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

Step 04

Combine mixtures: Pour the peanut butter mixture over the oats and dry ingredients. Stir very thoroughly, ensuring there are no dry pockets

Step 05

Adjust consistency: If the mixture is very thick, add a splash more milk and stir again

Step 06

Add sturdy ingredients: Stir in sturdy fruits or chocolate chips if using. Reserve delicate fruits for serving

Step 07

Refrigerate: Seal the container and refrigerate for at least 4 hours, preferably overnight for 8 to 12 hours

Step 08

Final preparation: In the morning, stir well and check consistency. Add more milk if desired

Step 09

Assemble and serve: 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

Step 10

Serve: Enjoy straight from the jar or transfer to a bowl. Refrigerated leftovers keep for up to 2 days with fresh fruit added just before serving

Tools You'll Need

  • Jar or container with lid, 12 to 14 fluid ounces capacity
  • Mixing bowl
  • Whisk or spoon

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains peanuts
  • Contains dairy if using dairy milk or yogurt
  • May contain tree nuts if used as add-ins or toppings
  • May contain soy if using soy milk or certain protein powders
  • Gluten-free if using certified gluten-free oats
  • Always check labels on protein powder and yogurt for potential allergens

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 600
  • Fats: 22 grams
  • Carbohydrates: 54 grams
  • Proteins: 40 grams