Peanut Butter Oatmeal

published Sep 26, 2021
Peanut Butter Oatmeal Recipe

A quick and easy peanut butter oatmeal.


Prep5 minutes

Cook10 minutes to 12 minutes

Jump to Recipe
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peanut butter oatmeal in a bowl with fruit
Credit: Photo: Joe Lingeman; Food Styling: Jesse Szewczyk

A hot bowl of oatmeal is one of the easiest, most satisfying breakfasts you can make — especially when peanut butter’s involved. This recipe will show you how to make the best, easiest peanut butter oatmeal in just 15 minutes, with instructions for both the stovetop and the microwave. Let’s get started.

Credit: Photo: Joe Lingeman; Food Styling: Jesse Szewczyk

How Do I Add Peanut Butter to Oatmeal?

The best time to add peanut butter to oatmeal is right before serving, when the oatmeal is done cooking but before it’s cooled off. As you stir it in, the heat helps melt it so it thoroughly combines with the oats, creating a silky-smooth texture.

This technique works with any variety of peanut butter you have on hand, be it creamy, natural, or chunky. Of course, chunky peanut butter will give the oatmeal a pop of texture, while creamy peanut butter will give it a luscious, velvety feel. I make mine with both and love them for different reasons, so it’s up to you!

What Are the Best Oats to Use?

The best oats for peanut butter oatmeal are old-fashioned rolled oats. This common variety, often sold in large cardboard canisters, is widely available in grocery stores.

If you’d like, you can use instant oats in place of rolled oats, but keep in mind that they cook faster so you might need to adjust the cook time slightly. Instant oats also tend to have a slightly mushier texture than old-fashioned oats, so just be prepared for a slightly different texture. Avoid using steel-cut oats in this recipe, which take much longer to cook.

Read more: What’s the Difference Between Steel-Cut, Rolled, and Instant Oats?

3 Tips For Making the Best Peanut Butter Oatmeal

Before heading into the kitchen to make this recipe, keep these tips in mind.

  • Don’t forget the salt. The kosher salt in this recipe helps balance the sweetness of the maple syrup or honey and bring out the flavor of the oats.
  • Let your oatmeal rest. After you simmer the oats in the liquid, let your oatmeal sit for five minutes before adding the peanut butter. The oats will absorb a significant amount of liquid during this time and continue cooking, so don’t rush it. At first the oats will look very watery, but they will absorb all of the remaining liquid during this resting time.
  • Play around with the recipe. Think of this recipe as a loose guide for making peanut butter oatmeal and feel free to adjust it based on your taste. Like your oatmeal sweeter? Add more maple syrup or honey! Like it a bit looser? Add more milk or water!

Peanut Butter Oatmeal Recipe

A quick and easy peanut butter oatmeal.

Prep time 5 minutes

Cook time 10 minutes to 12 minutes

Serves 2

Nutritional Info


  • 1 1/2 cups

    milk or water

  • 2 tablespoons

    maple syrup or honey

  • 1/4 teaspoon

    kosher salt

  • 1 cup

    old-fashioned rolled oats

  • 2 tablespoons

    peanut butter

  • Topping options: nuts, sliced banana, fresh berries, jam, or more peanut butter


  1. Place 1 1/2 cups milk or water, 2 tablespoons maple syrup or honey, and 1/4 teaspoon kosher salt in a medium saucepan and bring to a boil over high heat. Reduce the heat to medium-low to maintain a gentle simmer.

  2. Add 1 cup old-fashioned rolled oats and stir to combine. Cook, stirring often, until about 2/3 of the liquid has been absorbed by the oats, 3 1/2 to 4 1/2 minutes. (The oatmeal will still look very runny.) Remove the saucepan from the heat, cover, and let rest for 5 minutes.

  3. Uncover, add 2 tablespoons peanut butter, and stir until well combined. Serve immediately with your choice of toppings.

Recipe Notes

Microwave: To make this oatmeal in the microwave, combine the milk or water, maple syrup or honey, kosher salt, and oats in a large microwave-safe bowl. (The oatmeal will bubble up a lot, so make sure to use a large enough bowl.) Stir to combine and make sure the oats are completely covered by the liquid. Microwave on HIGH power until bubbling and about 2/3 of the liquid has been absorbed by the oats, 2 1/2 to 4 minutes. (The oatmeal will still look very runnythis point.) Let the oatmeal sit for 5 minutes in the microwave. Add the peanut butter and stir to combine.

Storage: Leftover oatmeal can be refrigerated in an airtight container for up to 4 days. When reheating, add more milk or water to help thin out the oatmeal as needed.