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Perfectly soft and chewy Peanut Butter Oatmeal Cookies are made with simple ingredients – quick oats, peanut butter, and brown sugar – and baked to cookie perfection. These comforting cookies are an irresistible treat that’s ready in just 30 minutes!

A white plate piled with peanut butter oatmeal cookies sits on a blue rustic table. In the background, two glasses of milk are visible, one with a cookie resting on top.


 

🥜 These cookies are super soft and packed with oatmeal cookie and peanut butter flavors, which I love. They are so great warm, and they store well, too! If oatmeal cookies and peanut butter cookies had a baby, this would be it!

Table of Contents

My 2 Best Tips For Making Peanut Butter Oatmeal Cookies

Let the Dough Rest: The resting period allows the oats to absorb moisture from the wet ingredients, which prevents the cookies from spreading too much during baking and creates that perfect chewy texture. Skipping this step can result in flatter, less cohesive cookies!

Watch the Baking Time Carefully: These cookies can go from perfectly golden to overbaked quickly…ask me how I know!! Look for edges that are set and lightly golden brown, but centers that still look slightly underdone. They’ll continue cooking on the hot pan after you remove them from the oven.

Melissa in her kitchen smiling in front of the starting ingredients for the chicken the quinoa salad and skillet chicken on the wood block in front of her

🩷 Melissa

From start to finish, these cookies come together in about 30 minutes. The simple mixing method and quick bake time make them perfect for last-minute treats, after school snacks, or when you need to satisfy a cookie craving fast!

You probably have most of these pantry staples on hand already, plus these cookies store well, so you could make a ton and keep them for later, meal prep for the week’s lunches, or even send as a gift.

A white plate piled with peanut butter oatmeal cookies sits on a blue rustic table. In the background, two glasses of milk are visible, one with a cookie resting on top.
4.96 from 44 votes

Soft & Chewy Peanut Butter Oatmeal Cookies

By: Melissa Griffiths
Perfectly soft and chewy Peanut Butter Oatmeal Cookies are made with simple ingredients – quick oats, peanut butter, and brown sugar – and baked to cookie perfection. These comforting cookies are an irresistible treat that's ready in just 30 minutes!
Prep: 15 minutes
Cook: 10 minutes
Total: 25 minutes
Servings: 48 cookies
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Ingredients 

  • 1 cup unsalted butter, at room temperature
  • 1 cup creamy peanut butter
  • 1 cup granulated sugar
  • 1 cup packed brown sugar, light or dark
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 2 1/2 cups quick-cooking oats, (also called instant or minute oats)
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt

Instructions 

  • Preheat the oven to 350°F and line a baking sheet with parchment paper or a baking mat.
  • In a large bowl or the bowl of your stand mixer beat together the butter, peanut butter, granulated sugar, and brown sugar until the mixture is light and fluffy, about 5 minutes. (You can also use a hand mixer if you don't have a stand mixer.)
  • Add the two eggs and vanilla and mix to combine.
  • Add the oats, flour, baking soda, baking powder, and salt to the bowl and mix to combine well.
  • Let the mixture rest for 5 minutes and then stir again to give the oats time to absorb some of the moisture so you get a nice cookie dough texture.
  • Using a cookie scoop or two spoons, place a large tablespoon of dough on the baking sheet about 3 inches apart for each cookie.
  • Bake cookies for 10-12 minutes, until the edges are set and lightly golden brown.
  • Remove from the oven and let cool on the baking sheet for 5 minutes before removing from the sheet and placing on a wire rack to cool.

Notes

Thick Peanut Butter: I like to use the thicker peanut butter here that is not the natural kind. If it’s too drippy your cookies will spread when baking
Best Oats to Use: I prefer instant or quick-cooking oats for this recipe; they tend to be smaller pieces than old-fashioned oats, and the texture is a little lighter. You can substitute old-fashioned or rolled oats in equal amounts; pulse them in a blender or food processor for a few seconds to make them more like instant oats.
Storing Cookies: The key to keeping cookies fresh and soft is to seal them in an airtight container, like a resealable freezer bag. And here’s a nifty little trick: add a piece of bread to the bag.
Freeze the Dough:
  1. To freeze the oatmeal cookie dough, make the dough into balls and then let them freeze for a few hours on the cookie tray (or in a dish so that they aren’t touching much).
  2. After the cookie dough balls have frozen through, add them to an air-tight container or a freezer zipper-top baggie.
  3. When you are ready to bake the dough, simply preheat the oven, place the frozen cookie dough balls on a cookie sheet, and bake, adding 2-4 minutes to the suggested cook time, as needed. No need to thaw ahead of time!

Nutrition

Serving: 1 of 48 cookies, Calories: 130kcal, Carbohydrates: 15g, Protein: 2g, Fat: 7g, Saturated Fat: 3g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 2g, Trans Fat: 0.2g, Cholesterol: 17mg, Sodium: 89mg, Potassium: 53mg, Fiber: 1g, Sugar: 9g, Vitamin A: 181IU, Calcium: 24mg, Iron: 1mg
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How to Make Peanut Butter Oatmeal Cookies

A food processor bowl containing a thick, light brown dough mixture pressed against the sides, viewed from above on a white countertop.

Step 1: Cream together the butter and peanut butter.

Close-up of oatmeal cookie dough being mixed in a white food processor, showing a crumbly, golden-brown texture with visible oats.

Step 2: Add the sugars, eggs, and vanilla and mix. Next, add all of the dry ingredients and stir to combine.

top view of baking sheet of oatmeal peanut butter cookie dough on a baking sheet

Step 3: Using a cookie scoop or two spoons, place a large tablespoon of dough on the baking sheet, about 3 inches apart.

A baking tray lined with parchment paper holds twelve freshly baked oatmeal cookies, with a metal spatula lifting one. Glasses and a jar of milk are seen in the background on a wooden surface.

Step 4: Bake cookies for 10-12 minutes, until the edges are set and lightly golden brown. Remove from the oven and let cool on the baking sheet for 5 minutes before removing from the sheet and placing on a wire rack to cool.

Recipe FAQs

Can I use old-fashioned oats instead of quick-cooking oats?

In oatmeal cookies, old fashioned oats will give you a chewier texture, and quick oats will result in slightly less chewy cookies, but the flavor is the same. I like using quick oats for this recipe because they break down more during baking, but you can substitute old-fashioned oats. Just pulse them in a food processor a few times to break them up slightly, or expect a more rustic texture with chewier oat pieces.

My cookies turned out too flat – what went wrong?

Flat cookies usually result from butter that’s too warm, not enough flour, or skipping the resting period. Make sure your butter is at room temperature (not melted), measure flour accurately, and don’t skip the 5-minute rest. Also, check that your baking soda is fresh.

Can I make these cookies gluten-free?

Yes! Simply substitute the all-purpose flour with your favorite gluten-free flour blend in a 1:1 ratio. Make sure to check that your oats are certified gluten-free as well, since regular oats can be cross-contaminated during processing.

top view of an oatmeal peanut butter cookie on a glass of milk, next to a plate of cookies.

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About Melissa Griffiths

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4.96 from 44 votes (4 ratings without comment)

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64 Comments

  1. Deb Brown says:

    5 stars
    Wow, so delicious ! By far my favourite cookie recipe. I add choc. chips which make them spectacular. Thank you 😍

    Reply
  2. D&L says:

    5 stars
    I forgot to put my stars for the recipe. Also thank you for the prayers and cheering

    Reply
  3. D&L says:

    5 stars
    Thank you for this recipe. It’s nice and soft plus it has protein from the PB and fiber and vitamins from the oats. I’m making them for my husband who has cancer and they are soft enough he can eat them and get benefits from them. Please 🙏 for him as we have just begun the battle at a young age. Thankful for your recipe!!

    Reply
    1. Melissa says:

      I’m so sorry to hear about your husband. I’m praying for your whole family and cheering for you as well.

  4. Ladylalae says:

    5 stars
    Oooooh! Melissa! YUMMY YUMMY! I made em & also in half the batch I put Marshmallow cream & made oatmeal peanut butter sandwich cookies!! Thank you!! 🙏😊

    Reply
  5. Julienne says:

    Looking at the nutritional information, can someone tell me what a serving is? One cookie?

    Reply
    1. Melissa says:

      Yep, that’s generally what I do then you just add up however many cookies you ate.

    2. Caitlin M says:

      5 stars
      I cannot get enough of these cookies. Fresh out, they are so soft and amazing, they keep in the fridge perfectly & the batter freezes so well. I don’t have an automated mixer so creaming is ALOT of work, but soooo so worth it😍 I do half light & half dark for the brown sugar, and the oats thicken the batter so much (almost broke a spatula) so I’ve started adding it last and it goes alot smoother! Forever obsessed and stashing this recipe away❤️

  6. Debra says:

    5 stars
    I’ve been making these cookies for over a year now. They are one of my grandson’s favorite. I just read the reviews to put in peanut butter chips or reeses pieces. I will have to try that with the next batch

    Reply
  7. Lori says:

    5 stars
    everyone loved these! Simply amazing taste and texture! I did add some chocolate chips and some raisins, because why not, right, about 3/4 cup each. I actually had an emergency to take care of just as I finished mixing, so threw in fridge. After an entire day, I finally was able to get to them. Not disappointed at all! Thanks for such a wonderful recipe!

    Reply
  8. Allison S. says:

    5 stars
    Really good recipe. I’m not an oatmeal cookie fan, but these are very good!!

    Reply
  9. Jenna says:

    5 stars
    I’ve never had a peanut butter/oatmeal combo cookie before. But let me say, these are heavenly delicious. I don’t think I’ll ever go back to plain peanut butter or oatmeal.

    Fantastic recipe!

    Reply
  10. Laurie E Boehmke says:

    5 stars
    these are the best cookies i ve ever hd.thank u sooo much 4 the recipe.our fam.is addicted 2 these.10☆☆☆☆☆☆☆☆☆☆☆☆☆

    Reply