web analytics
Kalyn's Kitchen

Quick and EASY Peanut Butter Oatmeal

This Quick and Easy Peanut Butter Oatmeal is the first thing I think of when I need some breakfast in a hurry, and this delicious oatmeal is vegan, dairy-free, low-glycemic, South Beach Diet approved for phase 2, and it can be gluten-free if you use gluten-free oatmeal! Use the Diet-Type Index to find more recipes like this one.

Click here to PIN Quick and EASY Peanut Butter Oatmeal.

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 without a doubt my favorite thing to make when I need a really quick breakfast.  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.

At my house I keep the oatmeal measured out into containers with a little salt added, so in the morning all I need to do is add water, microwave the oatmeal, and add peanut butter. 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 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 1/3-1/2 cup of Bob’s Red Mill Extra Thick Rolled Oats for a single serving for myself, depending on how hungry I am that day. 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, kid-friendly, has only a few ingredients, and is easy to cook!

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 found on KalynsKitchen.com.

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. 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. Then stir and cook the oatmeal 40-60 seconds more, stirring once or twice, until it’s as thick and soft as you prefer.

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

Add 3-4 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

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


  • 2/3 to 1 cup oatmeal
  • 1 3/4 cup water (or slightly more if you prefer a thinner oatmeal)
  • about 1/4 tsp. salt (or to taste, but do not leave out the salt)
  • 3-4 T peanut butter (for South Beach Diet be sure to get peanut butter without added sugar, check the label.)
  • Some people like this with a sprinkle of ground cinnamon, but I never use that.


  1. Put 2/3 to 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. Stir.
  4. Microwave for two minutes on high, remove from microwave and stir.
  5. Continue to microwave in 20 second intervals, stirring after each 20 seconds, until oatmeal reaches the desired consistency.
  6. 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.
  7. 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.
  8. Remove oatmeal and add Adams 100% Natural Peanut butter .  letting it melt for a minute or so and then stirring into the oatmeal. ( Always use chunky peanut butter)
  9. Sprinkle with ground cinnamon if desired.
  10. Serve hot.
  11. Recipe can be cut in half or increased as desired.


I always use Bob’s Red Mill Extra Thick Rolled Oats 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.

All images and text ©

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 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.

Nutritional Information?
If you want nutritional information for a recipe, I recommend entering the recipe into Calorie Count, which will calculate it for you. Or if you’re a member of Yummly, you can use the Yum button on my site to save the recipe and see the nutritional information there.

Pinterest image of Quick and EASY Peanut Butter Oatmeal

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

Leave a Reply

Your email address will not be published. Required fields are marked *

97 comments on “Quick and EASY Peanut Butter Oatmeal”

  1. I buy those oats in six package boxes so I never run out. They're the best. Will be trying this peanut butter version first thing tomorrow morning!

  2. My daughter would absolutely love this…but she'd ask for chocolate chips to go in. 🙂

  3. Now THIS is breakfast! PB and oatmeal – bring it on!

  4. PB Oatmeal?! This looks so yummy! Thanks for the recipe!

  5. There's always something new to discover on your blog, Kalyn! I'm with Sara on the almond butter variation. Thankfully, I don't have a peanut allergy, but I usually prefer almond butter. I could also see a tiny dollop of chocolate hazelnut butter instead … on occasion. 😉


  6. I love the sound of this! I think I'll try it with almond butter, I have a peanut allergy kiddo. 🙂

  7. My kiddos don't like oatmeal but LOVE peanut butter! This is going to save my mornings!!

  8. YUM! This looks like the ultimate breakfast comfort food!!

  9. You had me at peanut butter! I need a change up for my breakfast routine and this looks like just that!

    Krista @ Joyful Healthy Eats

  10. I'm going to have to try this, it sounds like a perfect fill-you-up-without-dragging-you-down breakfast.

  11. So glad to see you’re still turned onto oatmeal and peanut butter! I still make it my same old way, in the microwave in my bowl: JW won’t touch the stuff!

  12. I didn't believe it was going to be good, but it was.

  13. It was delicious!!!! Thank you!

  14. Sara, I use this Adams brand peanut butter. I'm not familiar with those two brands, but check the label and buy the one with the least sugar and you should be fine.

  15. Hi, I know you mentioned in your post to purchase peanut butter without added sugar… what kind of peanut butter would you recommend?

    I am currently using Smuckers Natural and/or Simply Jif… are there ok for the South Beach Diet?

  16. Now I'm thinking I have to try oatmeal cooked in milk after two commenters have mentioned it. The peanut butter is great with the oatmeal!

  17. Hmmm, Interesting. I've never cooked my oats in water. Always with milk. But, I'll try the Peanut Butter regardless…Just as soon as I get off Phase 1.Sigh.

  18. I'm not sure how it would work to cook the oatmeal in milk or use almond butter; you would have to experiment with that. I wouldn't use honey, it's listed as a food "to avoid or eat rarely" even for phase two.

  19. Hi Kalyn,

    That sounds wonderful! Would it be SBD friendly if used lowfat milk instead? And I wonder it would taste as good with almond butter….and also for phase 2, do you think sweetening it with a bit of honey would work?


  20. Cristy, this would be phase 2 or 3 for South Beach, and you should not have nuts for a snack on the day you have this for breakfast. It does say that it's phase 2 or 3 in the post, but I will edit to make it more noticeable.

  21. Hi! First, thank you so much for your blog! You are such a great recipe wizard!! I have a question. Is this recipe Phase 1 friendly? I wasn't sure if you could have oatmeal on Phase 1 or not? Thanks!!

  22. Let's see, chocolate, peanut butter and oatmeal? Definitely sounds good to me!

  23. This is a wonderful recipe! I found a great brand of oats that has rolled oats, wheat bran, and flax seeds, and I used this for the recipe. I did add in a sprinkle of cinnamon and it was fantastic! I am not a fan of oatmeal, generally speaking, but this was just great. I am a HUGE fan of PB so I was excited to find this recipe! I have some unsweetened chocolate flavored almond milk and am going to try cooking the oats in that… mmm chocolate, peanut butter and oatmeal! Thanks for sharing this recipe. Love your blog – I reference it frequently.

  24. I started eating Peanut Butter Oatmeal about 6 months ago and fell in love, literally. It's kind of weird how much I love this oatmeal. I have never liked any kind of food this much. It is almost an obsession. When I get into bed at night, I am actually giddy and can't wait til the morning to eat my PB oatmeal! I know that's sad, but it is so wonderful! Paired with my PG Tips tea, it is a piece of heaven in the morning while I read the paper. My kids make fun of me b/c I eat it everyday. It has definitely aided in my weight loss. I usually eat breakfast around 9am after a busy early morning — 5:30am workout followed by getting my older kids off to school and my little one up and fed. It fills me up so that I don't feel hungry until 2pm! Then I have a light lunch (around 300 cal) and a regular dinner. I can go on and on and on about this oatmeal. I consider the day that I found this blog with so many SB friendly recipes a blessed day but the PB oatmeal was the ultimate find! A million thanks to Alanna who originally created(I think) it and to Kalyn for sharing it! God bless you both!

  25. Anonymous, I've never tried it with other kinds of nut butters but I can't imagine why it wouldn't be good.

  26. Can you use some of the other nut butters, like almond butter? I don't care for peanut butter in other foods. Thanks

  27. I love peanut butter and because of that, I might have added too much peanut butter.
    I was searching for a better way to make oatmeal with brown sugar and cinnamon and came across your recipe for oatmeal and peanut butter. I added extra peanut butter and like I said, I added too much. I'll have to try this again, with less peanut butter.

  28. Thanks so much for this fabulous idea!!! I used a variation of this as the first post of my own food blog.


    Thanks for providing such great (South Beach friendly) recipes. I’ve made quite a few and your page has become a frequent reference page for me.

  29. Jen, glad you liked it! This is definitely my favorite SB breakfast for work days!

  30. I just made my regular whole rolled oats with milk and water and stirred in some peanut butter. It’s delicious! Thanks for the idea. It’s so filling and makes a great change from eggs.

  31. Well, though peanut butter is definitely an acquired taste (and something I haven’t yet acquired, I must admit), I had this peanut butter oatmeal in St Louis this summer – made by ‘the’ Alanna herself – and I quite liked it 🙂

  32. A great way to start the day I will try this!

  33. Peanut butter works surprisingly well in oatmeal. I like to add bananas to to the oatmeal and peanut butter as well.

  34. Andrea, now I’ve got to look for “pin head oats.” Never heard of that before!

Leave a comment »