Peanut Butter Overnight Oats

Peanut butter overnight oats are the perfect make-ahead breakfast for busy mornings! Prepare multiple servings in advance and then enjoy a nutritious breakfast on-the-go.

Two jars of peanut butter overnight oats on a wooden cutting board.
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Peanut Butter Overnight Oats

Food is my love language, and I think easy meals are one of my most favorite things ever! But breakfast can be difficult many mornings when you're trying to get the day started, get everyone where they need to be, and eat something healthy and filling.

So, one of my favorite easy breakfast items is overnight oats. They're a super simple way to get a protein-packed breakfast that is loaded with nutritional benefits.

These peanut butter overnight oats are to die for! I mean, I love peanut butter so they're extra delicious to me. I'll put peanut butter in anything from homemade cereal bars to creamy smoothies too. It's just so tasty!

Weekday mornings just go much more smoothly when I have things like overnight peanut butter oats in the fridge. I just prepare them the night before and they're ready the next day, or prepare them multiple days ahead of time and store until needed.

Why You'll Love this Recipe

I think you're gong to love this nutritious breakfast option as much as I do!

What's more simple than spooning a bunch of ingredients into jars and then setting them in the fridge for later? I can't think of much! Easy overnight oats recipes like this one are easy to love:

  • This is a wonderful breakfast to bring to friends in need, or to make for a meal train. Since you can make as many jars of this breakfast as you want, you can prep plenty to bless friends and family.
  • Recipe like this one are wonderful for meal prep menus. You can store these until needed and eat on them all week long!
  • This recipe is sugar free and loaded with nutritional foods. Feel good about what you're eating and what you are feeding to your family.
Peanut butter overnight oats and a spoon in a jar topped with peanut butter and bananas.


These few simple ingredients are all that you need to make the most perfect peanut butter overnight oats:

  • old-fashioned oats
  • chia seeds
  • peanut butter
  • milk
  • maple syrup 
  • cinnamon
Two mason jars filled with peanut butter overnight oats and chia seeds on a cutting board.

Substitutions and Variations

If you have a peanut allergy, then swap the peanut butter with any of your favorite nut butters. Almond butter, sunflower seed butter, and cashew butter would all be tasty.

You can use honey or agave syrup to sweeten the oats in place of pure maple syrup.

Feel free to omit the cinnamon and/or change up the spices. Some nutmeg or clove would be tasty, and vanilla extract would add great flavor too.

Use your milk of choice in this recipe, anything will work. Coconut milk, cashew milk, oat milk — all great dairy-free milk options. You can also use regular milk if you don't need to stick to the non-dairy milk options.

There are tons of delicious add-ins that you can mix into your oats. Chocolate chips would be tasty and are especially yummy if you really like chocolate peanut butter cups. Fresh fruit, shredded coconut, chopped walnuts or chopped pecans and even flax seeds are all great additions too.

Creamy peanut butter and chunky peanut butter will both work. Choose whatever is your favorite!

Two mason jars with peanut butter overnight oats.

How to Make Peanut Butter Overnight Oats

With nutritious ingredients and very simple steps, you can make this overnight oatmeal recipe in no time. Here's some step-by-step instructions on what to do:

In small mason jars, layer oats, chia seeds and peanut butter in the bottom. Then add any type of milk you want, maple syrup and cinnamon.

Stir together until thoroughly combined, making sure that all of the oats are coated in liquid.

Refrigerate the oat mixture for a minimum of two hours, but it's best to chill overnight.

When you are ready to serve, add you favorite toppings and enjoy!

A jar of peanut butter overnight oats with chia seeds on a wooden cutting board.

How to Store Peanut Butter Overnight Oats

These mason jars filled with peanut buttery goodness are incredibly easy to store. They are a wonderful meal prep item! Store in the fridge for up to 5 days. However, keep in mind that the longer the oats are stored the more soggy they will become.

What to Serve with Peanut Butter Overnight Oats

You don't have to serve anything with this breakfast item, but if you want to pack in more to your meal then there are a few tasty dishes to pair these oats with!

Things like egg muffins or a big helping of Mexican breakfast casserole would be delicious. A serving of this baked frittata would be great too.

And don't forget your toppings! Whether it's extra peanut butter, an extra sprinkle of chia seeds, homemade whipped cream or some greek yogurt — there can never be too many toppings in a jar of oats.

Peanut butter overnight oats topped with sliced bananas on a wooden cutting board.

Tips for Success

With these few tips and tricks, you can guarantee that every jar of your breakfast will be perfect:

  • If you are using natural peanut butter, it is extremely important that you thoroughly mix the butter and oil together before adding the peanut butter to the oats.
  • To ensure that this recipe is entirely gluten free, make sure that you purchase certified gluten-free oats.
  • When you mix up the jars of oats, be sure to scrape the bottom and sides of the jar to get all peanut butter incorporated.
A mason jar filled with peanut butter overnight oats and chia seeds on a cutting board next to a small wooden bowl with chia seeds.


What does leaving oats overnight do?

Allowing oats to sit in liquid overnight gives them time to absorb that liquid and soften to a nice and chewy texture. It's just like hot oatmeal, where the oats absorb the moisture, this is just a slower process with cool temperatures instead of heat!

Are overnight oats better with milk or yogurt?

While you can make these oats with either milk or yogurt, it is best to use milk so that there is plenty of liquid for the oats to absorb. However, you can absolutely top the finished product with a big scoop of Greek yogurt to add more flavor and protein.

Jars of peanut butter overnight oats with chia seeds on a cutting board.

More Easy Breakfast Recipes

Did you make this recipe?

If you make and love this recipe, please leave a ★★★★★ review below! It means so much to me when you try my recipes, and I'd love to know how it goes. Please leave a comment below if you have any questions.

Peanut butter overnight oats and a spoon in a jar topped with peanut butter and bananas.

Peanut Butter Overnight Oats

Try an easy, make-ahead breakfast with a big batch of Peanut Butter Overnight Oats! Perfect for busy mornings or sharing with friends in need of a meal.
5 from 1 vote
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Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 1 jar
Author: Madison | A Joyfully Mad Kitchen


  • ½ cup oats
  • 1 tablespoon chia seeds
  • 1 tablespoon peanut butter
  • ½ cup milk
  • ¼ cup maple syrup
  • 1 teaspoon cinnamon


  • In a small jar, layer oats, chia seeds, peanut butter powder and a pinch of salt. Top with cacao nibs if using. Seal jar and store in a dry place up to 6 months.
  • When ready to prepare, fill the jar almost to the top with the milk of your choice. Use more milk to make a runnier oatmeal, or use less milk to allow it to firm up more.
  • Stir in the sweetener of your choice. Seal and shake jar.
  • Leave overnight in the fridge to rest for at least 8 hours, up to 4 days. Enjoy cold.


Serving: 8ounces | Calories: 584kcal | Carbohydrates: 99g | Protein: 15g | Fat: 17g | Saturated Fat: 4g | Polyunsaturated Fat: 11g | Cholesterol: 10mg | Sodium: 148mg | Fiber: 11g | Sugar: 57g

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