This post may contain affiliate links. Read our privacy policy.

Some flavor combos just make sense, and peanut butter + banana is one of them. These peanut butter banana overnight oats capture all that cozy, nostalgic flavor in a hearty, make-ahead breakfast. Five minutes of prep today, and you’ve got breakfast happiness tomorrow.

Recipe Info

This recipe is:

Packed with flavor. The peanut butter and banana bring richness, sweetness, and a little saltiness — a perfect combo.
As easy as it gets. If you can stir a spoon, you can make this.
Meal-prep friendly. Make a few jars at once and have breakfast covered for the next few days.

Making peanut butter banana overnight oats for the first time? Read the ingredients notes, step-by-step instructions, and tips. If you’re familiar with the recipe, feel free to jump to the recipe card.

Extra Learning

Before we jump in, here are a few handy resources to help you nail this recipe:

Overnight oats 101. Our overnight oats base recipe that covers ingredient swaps, tips on adjusting the recipe, and how to fix common issues.

Ingredients and Substitutes

Rolled oats: Stick to rolled oats for the best texture. Quick oats will get too mushy.
Milk of choice: Dairy or any non-dairy alternative like almond, oat, soy, or coconut milk.
Chia seeds: Optional but highly recommended for a thicker texture and nutritional boost.
Cinnamon: Adds a cozy warmth that pairs beautifully with banana.
Liquid sweetener: I typically use maple syrup or honey, but other liquid sweeteners are decent options too.
Banana: Make sure it’s ripe for natural sweetness.
Peanut butter: Creamy or chunky — your call. I recommend natural peanut butter with just peanuts and maybe salt.
Vanilla extract: Adds even more flavor, but is totally optional.

Step-by-Step: How to Make PB Banana Overnight Oats

Mix dry ingredients. Into a bowl or jar, add rolled oats, chia seeds, cinnamon, and salt. Give it a quick stir.

Adding the dry ingredients — Mix in the chia seeds, salt

Stirring in the peanut butter — Mix in the chia seeds, salt

Prepare the banana-peanut butter mix. Roughly mash half a banana and stir in peanut butter. Keep it a swirly.

Mashing the banana — Roughly mash half a

Adding the peanut butter — Roughly mash half a

Add wet ingredients and mix. Pour in milk of choice, sweetener, and vanilla extract (if using). Stir well.

Adding the wet ingredients — Combine the milk, sweetener, and vanilla extract.

Combine. Gently stir the banana-peanut butter mixture into the oats. You want pockets of flavor, not a smooth blend.

Adding the banana and peanut butter — Stir the banana-peanut butter mix

Stirring in the banana and peanut butter — Stir the banana-peanut butter mix

Refrigerate overnight. Cover the jar or bowl and refrigerate for at least 6 hours.
Top and eat. Take the oats out of the fridge, top with your favorite topping options and dig in.

Smooth overnight oats with banana and peanut butter blend — Refrigerate overnight and add the toppings.

Enjoying the content?

I’d love to connect with you on Instagram! I’m aiming for my first 10 followers, so every single follow counts. Not on Insta? No worries, thanks for stopping by!

Variations

High Protein

The base recipe is pretty heavy on the carbs and light on the protein. Here’s how to balance that out:

Add Greek yogurt. Stir in 1/4 cup (60g) of non-fat Greek yogurt for an extra 6g of protein. It also makes the oats creamier.
Add protein powder. Mix a scoop of your protein powder (neutral, vanilla, and chocolate should all taste great) into the milk before pouring it over the oats—about 20g of extra protein right there. If your powder is sweetened, cut the liquid sweetener in half to start.

If you’re really after protein, simply add both.

	Protein per serving (g)
Regular	13.8
Regular + Greek yogurt	19.8
Regular + protein powder	33.8
Regular + Greek yogurt + protein powder	39.8

Vegan

Making overnight oats vegan-friendly is as simple as using a milk alternative (I like oat milk, but use your favorite option) and a vegan-friendly sweetener, such as maple syrup. If you want to make these high in protein and still vegan friendly, use plant based protein powder.

Meal Prep

Meal-prepping these is a breeze. All you need is to multiply the ingredients by how many servings you need and make the oats.

You can either make everything in a big bowl and then portion it or measure everything separately for each jar or container. Your choice.

I suggest adding the peanut butter banana combo to each container separately so that all have a fair bit of extra flavor.

Tips

Easy on the peanut butter. Peanut butter is delicious, but it’s calorie-dense. If you’re keeping an eye on your macros or trying to lose weight, measure it out instead of eyeballing. It’s super easy to double up without realizing it!

Peanut butter banana overnight oats for two — Delicious peanut butter banana overnight oats for breakfast

Add a pinch of salt to your peanut butter. If you’re using unsalted peanut butter, mix in a tiny pinch of salt—it’ll bring out the flavor and make everything taste a little richer.
Keep bananas from browning. Banana slices tend to turn brown overnight. It’s totally fine to eat (just less photogenic), but if you want to keep them looking fresh, a quick sprinkle of lemon juice over the banana helps stop the browning. Or just embrace the brown spots—they’re harmless and still tasty!

Storage

You can store PB banana overnight oats in the fridge for 3 to 4 days. Make sure the container is sealed tightly so they don’t absorb any smells.

Similar Recipes to Try

Looking for more? Check out the following recipes:

Overnight oats 101. Base overnight oats recipe you can customize however you like. Plus a number of ideas on how to do so.