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Kalyn's Kitchen

Quick and Easy Peanut Butter Oatmeal

Quick and Easy Peanut Butter Oatmeal is perfect when you need some breakfast in a hurry, and this delicious oatmeal is a treat you can literally make in minutes! 

PIN Quick and EASY Peanut Butter Oatmeal to try it later.

Most people who cook at home regularly have favorite recipes they make over and over, and this Quick and Easy Peanut Butter Oatmeal that I learned to make from fellow food blogger Alanna Kellogg back in October 2006 is one of my favorite things to make when I need a really quick breakfast and want a treat.  This simple four ingredient breakfast treat combines microwaved extra-thick oatmeal with a generous scoop of peanut butter, for a  simple easy breakfast that tastes delicious and will keep  you going until lunch. This is a splurge on carbs for me, but if you’re not watching carbs you’ll probably make it over and over!

This is ridiculously easy to make, but there is a little technique to the recipe or the oatmeal will bubble over in the microwave. And if you have a 4-cup glass measuring cup, that’s the perfect tall container for making two servings. (Of course if you don’t have a microwave or don’t want to use it, you can make regular oatmeal on the stove and then stir in the peanut butter, although that breakfast won’t be quite as quick and easy.)

What Type of Oatmeal Do I Use for Peanut Butter Oatmeal?

There are three types of oatmeal: instant oatmeal, quick oatmeal, and regular oatmeal (also called rolled oats). Some people also like steel cut oats, which are even more nutritious but not suitable for microwave cooking like this! Here’s some information about all the types of oats from Cook’s Thesaurus.

Since less processed foods are lower on the glycemic index, regular oatmeal is best for carb-conscious eaters or South Beach Dieters. I always use Bob’s Red Mill Extra Thick Rolled Oats (affiliate link) for this recipe. (That’s an affiliate link, and because I know some of you are wondering, Bob’s Red Mill has not compensated me in any way to promote their oatmeal!)

Can Peanut Butter Oatmeal Be Made Ahead?

I knew some of you who scramble to even find a couple of minutes in the morning would want to know this, so I tried it, and yes you can make this, refrigerate overnight, and then heat the next day. Add a bit of water and microwave for about 1 minute to reheat. However, you’re only saving minutes, and it’s much better freshly made.

Tips for Making Peanut Butter Oatmeal:

The basic ratio for Quick and Easy Peanut Butter Oatmeal is one part oatmeal to not quite two parts water. I use 1/2 cup of Bob’s Red Mill Extra Thick Rolled Oats for a single serving for myself. Don’t forget to add a pinch of salt for each portion of oatmeal. Then microwave the oatmeal until it’s done (see below for timing), add the peanut butter and let it melt, and stir. That’s it. And peanut butter oatmeal is meatless, vegan, South Beach Diet Phase Two, dairy-free, and kid-friendly!

I like chunky peanut butter best in this for a little extra crunch. And if you’re a mom or dad who’s making breakfast for kids it would be easy to turn this into peanut butter and jelly oatmeal, which would still be a really nutritious breakfast for a school-day morning.

Quick and Easy Peanut Butter Oatmeal process shots collage

How to Make Quick and Easy Peanut Butter Oatmeal:

(Scroll down for complete recipe with nutritional information.)

  1. For two servings of oatmeal, you’ll need about 1 cup rolled oats (not instant), 1 3/4 cups of water (or a little more if you like thinner oatmeal), and a little salt.
  2. Stir the oatmeal, water, and salt together in a 4-cup glass measuring cup (or a bowl with high sides) and microwave on high for 2 minutes.
  3. Then stir and cook the oatmeal 40-60 seconds more, stirring once or twice, until it’s as thick and soft as you prefer.
  4. I always use my favorite Adams 100% Natural Peanut Butter (affiliate link), but choose a peanut butter without added sugar if that’s important to you.
  5. Add 4 tablespoons peanut butter, let it melt a couple of minutes, then stir into the oatmeal.

Quick and Easy Peanut Butter Oatmeal found on KalynsKitchen.com.

That’s it! Peanut butter oatmeal is easy and delicious for a quick healthful breakfast.

More Tasty Ideas with Oatmeal:

Baked Blueberry Oatmeal ~ Nutmeg Nanny
CrockPot Make-Ahead Apple Pie Oatmeal ~ Kalyn’s Kitchen
Slow Cooker Joyful Almond Oatmeal ~ Apron Strings
Low-Sugar Whole Wheat and Oatmeal Blueberry Muffins with Lemon ~ Kalyn’s Kitchen
Pumpkin Spice Oatmeal with Raisins and Pecans ~ The Perfect Pantry
Strawberry Overnight Oats ~ Family Food on the Table

Quick and EASY Peanut Butter Oatmeal

Quick and EASY Peanut Butter Oatmeal

Yield Makes 2 servings
Prep Time 10 minutes
Cook Time 3 minutes
Total Time 13 minutes

This Quick and Easy Peanut Butter Oatmeal makes a great  breakfast in a hurry!


  • 1 cup oatmeal
  • 1 3/4 cup water (or slightly more if you prefer a thinner oatmeal)
  • 1/4 tsp. salt (or to taste, but do not leave out the salt)
  • 4 T peanut butter
  • Some people like this with a sprinkle of ground cinnamon, but I never use that.


  1. Put 1 cup oatmeal in a 4-cup glass measuring cup (or a microwave-proof bowl with high sides) and sprinkle with salt.
  2. Stir in 1 3/4 cup warm water, or slightly more, depending on how thick you like your finished oatmeal.
  3. Microwave for two minutes on high, remove from microwave and stir.
  4. Continue to microwave in 20 second intervals, stirring after each 20 seconds, until oatmeal reaches the desired consistency.
  5. The oatmeal in these photos was cooked for three minutes, but you may prefer it slightly more chewy or softer, so experiment to get the consistency you like.
  6. Be sure to use a container with high sides or the oatmeal will boil over when you get to the end of the cooking time.
  7. Remove oatmeal and add Adams 100% Natural Peanut butter (affiliate link) or your favorite peanut butter. Let it melt for a minute or so and then stir into the oatmeal. (I always use chunky peanut butter)
  8. Sprinkle with ground cinnamon if desired.
  9. Serve hot.
  10. Recipe can be cut in half or increased as desired.


I always use Bob's Red Mill Extra Thick Rolled Oats (affiliate link) for this. Be sure you the oats you use are certified Gluten-Free if needed; some oats are not gluten-free.

This recipe created and generously shared by my friend Alanna.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 274Total Fat: 18gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 11gCholesterol: 0mgSodium: 456mgCarbohydrates: 23gFiber: 5gSugar: 2gProtein: 10g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

If you make this recipe I'd love to hear how it turns out. Leave a star rating or share on social media with the hashtag #KALYNSKITCHEN, thanks!

Quick and Easy Peanut Butter Oatmeal square image of finished oatmeal

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Oatmeal is too high in carbs for a traditional low-carb diet, but this Quick and Easy Peanut Butter Oatmeal is low-glycemic and is approved for phase two or three of the South Beach Diet.

Find More Recipes Like This One:
Use Breakfast Recipes to find more recipes like this one. Use the Recipes by Diet Type photo index pages to find more recipes suitable for a specific eating plan. You can also Follow Kalyn’s Kitchen on Pinterest to see all the good recipes I’m sharing there.

Pinterest image of Quick and Easy Peanut Butter Oatmeal

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    97 Comments on “Quick and Easy Peanut Butter Oatmeal”

  1. This looks like one to try…thanks so much for the post!

  2. I’m slurping on a bowlful of oatmeal-peanut butter even as I type this…what a great start to the day! That Alanna sure is clever 🙂 And you Kalyn, are the best for sharing this with us!

  3. Karina, I just learned that oatmeal has gluten. I think peanut butter quinoa sounds great.

    Paz, and G.P. Give it a try!

    Alysha, like the idea of cooking it in the rice cooker. I want to try the steel cut oats.

    Brady, thanks for being a fan. Actually the only thing not SB approved in your version would be the sugar. I bet kids would love this!

  4. I may have bastardized this a bit, but as I am not a South Beacher-just a Kalyn fan-I think it’s ok. I cooked my oatmeal in milk instead of water, used natural peanut butter and added a sprinkle of cinnamon sugar to it. It was the best. How is it I never thought of this before? Peanut butter oatmeal cookies are my favorite!
    Thanks, again for a great recipe. The kids and I love it.

  5. Why didn’t I think of that? 🙂

    I made the move to making my own oatmeal last year after I got a rice cooker. You can assemble everything in the cooker the night before, set the timer and wake up to oatmeal ready to eat! It was great when I had to leave the house by 7:15 a.m., but wanted a hot breakfast. This way too – I can make enough for the whole family at one time.

    I tend to prefer steel cut oats. They do take longer to cook than rolled oats, but I love the texture. And with the rice cooker, time isn’t an issue.

    I will give the PB version a try. DH has been asking me to make oatmeal………

  6. Two of my fav foods, pb and oatmeal… will have to try this combo..

  7. Peanut butter oatmeal? Very interesting!


  8. Om my goddess! I have to make this gluten free. I’m thinking – peanut Butter Quinoa! 🙂

  9. Emily I would guess that steel cut oats would take a bit longer to cook, but it’s only a guess. I think you could still use the same method, but might have to do a few more 15 second sequences. Let us know if you try it how long it takes.

  10. That sounds incredible – thank you both, Kalyn and Alanna, for posting this oatmeal.
    Do you know if the cooking times need to be adjusted for the steel-cut oats? They’re my personal favorite.

  11. I actually learned to like oatmeal I have to try this.

  12. I’m really not a fan of oatmeal (it’s a texture thing, I have trouble eating anything that ‘gluggy’, bananas included!) but as I have an addiction to peanut butter, I’d be up for giving these a shot!

  13. Coffeepot, I think Grapenuts sounds like a pretty healthy breakfast too, but I’d have to check the label. I’m a neurotic label reader.

    Ilva, try it. You’ll like it.

    Sarah, thanks for the reminder about the steel cut oats. Even better.

    GFBTB, thanks. Can you eat oatmeal on a GF diet? I saw different opinions on it.

  14. Ooh, another new twist for oatmeal. I’m always looking for new things to do with it. I recently posted my coconut oatmeal recipe which I came up with because I was bored of the plain stuff. Lovely blog!

  15. Don’t forget about steel cut oats too, which are nutritionally the best since they are rougher and can really clean out the system.

    I bet this would be good with that type of oatmeal too.

  16. Interesting! I always loved oatmeal just like it is but maybe I should try this just to jazz it up!

  17. I am trying to diet but I’ve already had grapenuts this morning.

    I am going to try this tomorrow. I love PB.

  18. Alanna, I agree that the old fashioned oatmeal is great! The sugars taking longer to digest is what the glycemic index is all about (that’s what the South Beach Diet is based on). But you are absolutely right that different diets work for different people. Thanks for mentioning that this is great for WW too. I think about the only diet this wouldn’t work for is gluten free (I think oatmeal has gluten??)
    The peanut butter makes this a gourmet treat, at least for me.

    Foodie’s Hope, as Alanna mentioned, I firmly believe that you have to choose a diet based on your own food preferences. I was never a big sweets eater, possibly one reason South Beach has worked so well for me. I lost over 40 pounds and have kept it off for two years, three months so far, while writing a food blog and thinking about food all the time. There’s some links in the bottom left sidebar of my blog if you want to read more about how it worked for me.

  19. Does this south beach diet really work?
    Bowl of oatmeal looks good though!! Oatmeal is also good for your heart and cholestrol!!

  20. Isn’t it good?!

    Since Kalyn’s the one who taught me that “different diets work for different people”, I’ll mention that this is Weight Watchers friendly too. A 1/4 cup old-fashioned oats (which has more fiber) and a tablepoon of peanut butter is a rich-tasting 3 points. If I’m saving points for later in the day, I’ll use a half tablespoon for 2 points.

    And I’ll share something else, too, something I’ve learned since you were here, Kalyn. Remember how I told you that usually it’s quick (NOT instant) oatmeal that I keep on hand but that what we were eating was old-fashioned rolled oats? And that I thought I preferred the quick?

    Well, all that’s changed. It took a week to get used to the thicker texture of the old-fashioned oatmeal and now I love it.

    But here’s the real trick. I’m no longer getting the hungries at 11 o’clock.

    And just this week I read that there’s a chemical reason for this: that the sugars of the whole grains take longer to digest, keeping my blood sugar even and preventing a mid-morning slump. An added benefit is that I’m drinking less coffee … and therefore sleeping better at night, too.

    All this from a lowly bowl of oatmeal! (Don’t forget the peanut butter …)