Peanut Butter Overnight Oats Recipe

I’ve shared a rendition of this recipe in a lot of places. It’s in my e-book “Easy Eats” (which you can buy here), and was also one of my first featured recipes on Eat This, Not That!, but it felt strange to not have it on my website where I could easily refer it. So here we are—the simplest peanut butter overnight oats for your meal prep.

peanut butter overnight oats with fresh blackberries
peanut butter overnight oats with berries and peanut butter drizzle

Make overnight oats any way you want

While the recipe I use involves peanut butter and chia seeds, you can honestly make overnight oats in any way your heart desires. The most important thing when making overnight oats is the oats, the milk, and the sweetener. The sweetener in it isn’t even that necessary, but it sure does make it taste better.

Here’s a breakdown of what you need in your oats:

  • 1/2 cup rolled-cut oats
  • 1/2 cup milk (I use almond, pick whatever milk you want)
  • 1 tsp maple syrup

Other great mix-ins for overnight oats include:

  • Almond butter
  • Cocoa powder
  • Jam (or crushed fruit)
  • Cinnamon
  • Nuts
  • Dried, frozen, or fresh fruit
  • Mini chocolate chips
peanut butter overnight oats with blackberries and drizzled peanut butter

Prep in wide-mouth mason jars

You can use any container you want for your peanut butter overnight oats, but I personally like to use wide-mouth mason jars. It makes scooping the oats and the fruit easier!

Top with any fruit your heart desires!

I personally love topping my peanut butter overnight oats with berries. Strawberries, raspberries, blackberries, blueberries…honestly whatever I can grab for cheap. Sometimes if I’m feeling it, I’ll even drizzle some warm peanut butter on top. But when I’m rushing out of the door and heading to work, taking time to drizzle peanut butter on top isn’t exactly my top priority.

If you prep your peanut butter overnight oats in a 16 oz. mason jar, you’ll have enough room to almost a cup of fresh berries on top of your oats and still have room to seal the lid (obviously I added more for the photos on this blog).

But berries aren’t your only fruit option! Here are some fruits you can cut up and add to your peanut butter overnight oats:

  • Banana
  • Apple slices
  • Pomegranate seeds
  • Mango slices
  • Pear slices
  • Dried fruit
  • Strawberries
  • Blackberries
  • Raspberries
  • Blueberries

Or even do a combination of any of these items!

Looking for other breakfast recipes you can meal prep?

Here are some of my favorites!

meal prep guide button
peanut butter overnight oats with chia seeds and blackberries
spoonful of peanut butter overnight oats with blackberries

Peanut Butter Overnight Oats

Prep a jar of these overnight oats and you'll have an easy breakfast to grab-and-go in the morning.
Prep Time5 mins
Cook Time0 mins
Resting Time6 hrs
Total Time6 hrs 5 mins
Course: Breakfast
Keyword: easy overnight oats, overnight oats, peanut butter overnight oats
Servings: 1 serving
Calories: 349kcal


  • 1/2 cup rolled-cut oats
  • 1 tsp chia seeds
  • 1/2 cup almond milk
  • 1 Tbsp peanut butter
  • 1 tsp maple syrup
  • 1/2 cup blackberries


  • In a mason jar or a small container, add the oats and the chia seeds.
  • Pour in the almond milk and the maple syrup.
  • Drop in the tablespoon of peanut butter, then mix well to combine.
  • Scrape the sides of the jar with the spoon and make sure all of the oats are submerged in the milk.
  • Seal the jar/container and place in the fridge to soak overnight (needs at least 6 hours).
  • Top with fresh berries in the morning, or any other type of fruit you desire. Drizzle with extra peanut butter if you want as well.

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peanut butter overnight oats

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