Peanut butter overnight oats are a simple and satisfying no-cook breakfast. Rolled oats, chia seeds, and peanut butter soften in milk overnight in the refrigerator, creating a creamy, pudding-like texture.
This recipe takes just five minutes to assemble the night before. It’s a convenient option for busy mornings when you want a wholesome meal ready to go.
Why is Peanut Butter Overnight Oats a Must-Try?
Soaking the oats overnight softens them without any cooking, resulting in a smooth and creamy texture.
Chia seeds absorb liquid and expand, which helps to thicken the oats into a pudding-like consistency.
Making the oats in an individual jar means you have a portable, portion-controlled breakfast ready to eat.
Ingredients for Peanut Butter Overnight Oats
• Oats: Old-fashioned rolled oats work best. Quick-cooking oats can become too mushy, and steel-cut oats will not soften enough.
• Peanut Butter: Creamy or crunchy peanut butter can be used. Natural peanut butter that is well-stirred works nicely.
• Milk: Any type of milk is suitable, including dairy milk, almond milk, soy milk, or oat milk.
• Sweetener: Maple syrup or honey adds a touch of sweetness but can be omitted if your peanut butter is sweetened or you prefer a less sweet breakfast.
Exact quantities are in the recipe card below.

How to Make Peanut Butter Overnight Oats
Step 1: Combine Dry Ingredients
In your jar or container, first add the old-fashioned rolled oats and the chia seeds. This helps ensure the chia seeds are well distributed.
Step 2: Add Wet Ingredients
Next, add the peanut butter, your choice of milk, and any optional sweetener. It’s helpful to add the peanut butter on top of the oats rather than directly on the bottom of the jar.

Step 3: Mix and Chill
Stir everything thoroughly until combined. The mixture might look thin at first. Seal the container and place it in the refrigerator to chill for at least four hours or overnight.
Step 4: Serve
After chilling, give the oats a final stir. Adjust the consistency with an extra splash of milk if desired, and finish with your favorite toppings.
What to Serve with Peanut Butter Overnight Oats
These oats are a complete breakfast on their own. For extra flavor and texture, serve with fresh fruit like sliced bananas or berries, a sprinkle of cinnamon, or some chopped peanuts.
Expert Tips for Peanut Butter Overnight Oats
The oats will be thick in the morning. A splash of milk helps loosen them to a spoonable texture.
For a smoother texture, stir the peanut butter with a little of the milk first before adding the rest of the ingredients.
Feel free to double or triple the recipe in separate containers for a few days of grab-and-go breakfasts.
How to Store and Freeze Peanut Butter Overnight Oats
Store the overnight oats in a sealed container in the refrigerator for up to 3 days. The texture will continue to soften over time. This recipe is not suitable for freezing.

Peanut Butter Overnight Oats Recipe FAQs
Can I use quick oats?
Quick oats can be used, but they will result in a much softer, mushier texture. For a chewier consistency, old-fashioned rolled oats are recommended.
Can I warm this up?
Yes, you can gently warm the overnight oats in the microwave. Heat in 30-second intervals, stirring in between, until warmed through. You may need to add a little extra milk.
Why are my oats so thick?
The oats and chia seeds absorb a lot of liquid as they sit. This is normal. Simply stir in an extra splash of milk before serving until you reach a consistency you like.

Peanut Butter Overnight Oats
Ingredients
- 1/2 cup old-fashioned rolled oats 45g
- 1 tablespoon peanut butter 16g
- 1 teaspoon chia seeds 5g
- 1/2 cup milk plus more for serving, 120ml
- 1 teaspoon maple syrup or honey optional
- Optional toppings: sliced banana fresh berries, chopped nuts
Instructions
- In a jar or container with a lid, add the rolled oats and chia seeds.
- Add the peanut butter, milk, and optional maple syrup or honey.
- Stir everything together very well until the peanut butter is mostly mixed in. Some small clumps are fine.
- Secure the lid on the container.
- Refrigerate for at least 4 hours, or preferably overnight.
- Before serving, stir the oats. If they seem too thick, add another splash of milk to reach your desired consistency.
- Add your favorite toppings, like banana slices or berries, before enjoying.
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