Peanut Butter Oatmeal Cookies Recipe – Soft, Chewy & Easy

By :

Jake

October 3, 2025

Stack of soft and chewy peanut butter oatmeal cookies on a white plate

If you’re craving a cookie that balances nutty flavor with hearty oats, these peanut butter oatmeal cookies are the answer. Soft and chewy with just the right bite, they’re simple enough for weeknights yet good enough for sharing at family gatherings.

The best part? This easy cookie recipe comes together with pantry staples and a few quick steps. Whether you enjoy them plain or loaded with chocolate chips, these cookies deliver comfort in every bite.

My Story With These Peanut Butter Oatmeal Cookies

Growing up in San Antonio, I learned early that food connects people. My mom’s food truck kept us busy, but it also fueled my love for recipes that are simple, filling, and made to share.

These peanut butter oatmeal cookies remind me of evenings when we’d wind down after long days, mixing cookie dough with whatever we had on hand—always oats and a jar of peanut butter.

Now, as a dad outside Austin, I bake these soft and chewy cookies for my kids. They’re a little taste of home: easy, hearty, and made for slowing down together.

Ingredients for the Best Peanut Butter Oatmeal Cookies

Neatly arranged ingredients for peanut butter oatmeal cookies

The secret to soft and chewy peanut butter oatmeal cookies is starting with the right mix of pantry staples. These ingredients create a cookie that’s hearty, flavorful, and perfectly balanced between nutty richness and oat texture.

  • Old-fashioned oats – rolled oats give the best chew and hold the cookies together.
  • Creamy peanut butter – Jif or Skippy work best for consistency, though natural peanut butter can be used with adjustments.
  • Brown sugar – adds moisture and caramel depth.
  • Ground cinnamon – a warm spice note that pairs beautifully with oats.
  • Baking soda – ensures the right rise.
  • Butter, eggs, and vanilla extract – the backbone of any chewy cookie.
  • Chocolate chips (optional) – for a classic sweet twist.

If you love this flavor combo, try my peanut butter banana cookies for another chewy treat. You might also enjoy my lemon poppy seed muffins when you want something bright and zesty.

Step-by-Step Instructions (Perfect Texture Every Time)

Freshly baked peanut butter oatmeal cookies cooling on parchment paper

Getting the right texture in peanut butter oatmeal cookies comes down to the method as much as the ingredients. Follow these steps for soft, chewy cookies every time.

  1. Cream butter and sugars – Use room temperature butter for easy mixing and a smooth dough.
  2. Add peanut butter and eggs – Mix until fluffy, then stir in vanilla.
  3. Combine dry ingredients – Whisk oats, flour, cinnamon, and baking soda together.
  4. Mix wet and dry – Gently combine, then fold in chocolate chips if using.
  5. Chill the dough – At least 30 minutes in the fridge keeps cookies from spreading too thin.
  6. Bake – Scoop dough onto a lined baking sheet and bake at 350°F for 9–11 minutes. Do not overbake—cookies continue cooking as they cool.

For the main primary recipe, check out our step-by-step guide to Peanut Butter Cookies that covers everything from mixing to baking

  • Chill your dough: Cold dough bakes thicker.
  • Mind the sugar ratio: More brown sugar = chewier cookies, more white sugar = crisper edges.
  • Choose the right leavening: Baking soda encourages spread, while baking powder gives a puffier cookie.

For more baking success, check out my guide on sourdough discard cinnamon rolls where chilling dough also plays a key role. If you want a no-fuss sweet bite, my chocolate muffin recipe is another great option.

Variations & Mix-Ins for Peanut Butter Oatmeal Cookies

One of the best things about peanut butter oatmeal cookies is how easy they are to customize. Whether you like them classic or loaded with extras, these variations keep the recipe fresh and exciting.

  • Chocolate Chip Peanut Butter Oatmeal Cookies – Stir in semi-sweet or dark chocolate chips for the ultimate indulgence.
  • Flourless Peanut Butter Oatmeal Cookies – Skip the flour and rely on oats and peanut butter for structure—perfect for a naturally gluten-free option.
  • 4-Ingredient Cookies – Peanut butter, oats, egg, and sugar make a simple yet satisfying cookie when you need a quick fix.
  • Raisins or Dried Cranberries – Add a little chew and natural sweetness.
  • Chopped Nuts – Walnuts or pecans bring crunch and balance the soft texture.

If you enjoy simple bakes, you’ll love my oatmeal protein pancakes for a breakfast twist. For another fun peanut butter idea, try my peanut butter banana cookies, which combine two comfort flavors in one bite.

Dietary Options & Substitutions

These peanut butter oatmeal cookies are easy to adapt for different diets without losing their chewy, comforting texture.

  • Gluten-Free Peanut Butter Oatmeal Cookies – Use certified gluten-free oats and swap flour with almond or oat flour.
  • Vegan Cookies – Replace eggs with a flax egg or aquafaba (chickpea liquid). Opt for dairy-free butter or coconut oil.
  • Dairy-Free Butter Substitute – Plant-based butter sticks give the closest result to regular butter. Avoid margarine for best flavor.
  • Refined Sugar-Free Cookies – Swap brown sugar with coconut sugar or maple syrup for a naturally sweet cookie.

For more wholesome bakes, check out my gluten-free pancakes recipe. If you’re on a plant-based journey, my vegan cheesecake recipe is another treat worth adding to your list.

Storage, Freezing, and Make-Ahead Tips

The beauty of these peanut butter oatmeal cookies is how well they keep, making them perfect for planning ahead.

  • Room Temperature Storage – Keep cookies in an airtight container for up to 5 days. A slice of bread inside the container helps maintain softness.
  • How to Freeze Cookie Dough – Scoop dough balls onto a baking sheet, freeze until solid, then transfer to a freezer bag. They’ll keep for 2–3 months.
  • Bake from Frozen – No need to thaw—just add 1–2 extra minutes to the bake time.
  • Freeze Baked Cookies – Once cooled, layer cookies with parchment in a freezer-safe container. They’ll stay fresh for about 2 months.

For another freezer-friendly idea, try my cherry yum yum which chills beautifully in the fridge. And if you’re craving a quick breakfast prep option, my mango chia pudding also stores well for days.

Frequently Asked Questions

Can I use natural peanut butter?

Yes, but it changes the texture. Natural peanut butter makes the dough softer and can cause more spread. If you use it, chill the dough longer. For a firmer cookie, stick to Jif or Skippy.

What oats are best for cookies?

Old-fashioned rolled oats give the best chew and structure. Quick oats work in a pinch but result in a softer cookie.

How to make peanut butter oatmeal cookies without flour?

Skip the flour and rely on oats and peanut butter for structure. These flourless cookies are naturally gluten-free and chewy.

How do I freeze peanut butter oatmeal cookie dough?

Scoop dough balls, freeze on a tray, and store them in a freezer-safe bag for up to 3 months. Bake from frozen by adding 1–2 extra minutes to the bake time.

Bringing It All Together

Plate of peanut butter oatmeal cookies with milk on a cozy kitchen table

These peanut butter oatmeal cookies prove that comfort doesn’t have to be complicated. With the perfect balance of nutty flavor and hearty oats, they’re soft, chewy, and endlessly adaptable.

Whether you enjoy them plain, with chocolate chips, or customized with your favorite mix-ins, they’ll quickly become a family favorite. Bake a batch today, share them warm, and watch how fast they disappear.

For the main primary recipe, check out Peanut Butter Cookies that covers everything from mixing to baking

Stack of soft and chewy peanut butter oatmeal cookies on a white plate
33c99b172f9da99a80c3b6ab7862a8faJake

Peanut Butter Oatmeal Cookies

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Soft, chewy, and perfectly nutty, these peanut butter oatmeal cookies are made with pantry staples and baked to comfort-food perfection. Great for snacking, sharing, or freezing ahead!
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 18 servings
Course: Dessert
Cuisine: American
Calories: 175

Ingredients
  

  • 1.5 cup old fashioned oats
  • 0.5 cup all-purpose flour
  • 0.5 tsp baking soda
  • 0.25 tsp salt
  • 0.5 tsp ground cinnamon
  • 0.5 cup unsalted butter
  • 0.5 cup creamy peanut butter
  • 0.5 cup granulated sugar
  • 0.5 cup light brown sugar
  • 1 large egg
  • 1 tsp vanilla extract

Equipment

  • mixing bowls
  • Hand mixer or stand mixer
  • baking sheet
  • oven
  • Spoon or cookie scoop

Method
 

  1. Cream together room-temperature butter, granulated sugar, and brown sugar until smooth.
  2. Add peanut butter, egg, and vanilla extract. Mix until fluffy.
  3. In a separate bowl, whisk oats, flour, cinnamon, baking soda, and salt.
  4. Combine the wet and dry ingredients, mixing just until combined. Optionally fold in chocolate chips.
  5. Chill the dough for at least 30 minutes to prevent spreading.
  6. Scoop dough onto a lined baking sheet and bake at 350°F (175°C) for 9–11 minutes until golden at the edges.
  7. Cool cookies on the baking sheet for a few minutes before transferring to a wire rack.

Nutrition

Calories: 175kcalCarbohydrates: 18.2gProtein: 3.4gFat: 9.4gSaturated Fat: 3.5gPolyunsaturated Fat: 1.5gMonounsaturated Fat: 3.2gCholesterol: 18mgSodium: 102mgPotassium: 98mgFiber: 1gSugar: 9gVitamin A: 60IUCalcium: 21mgIron: 1mg

Notes

  • Use old-fashioned oats for a chewy bite and chill the dough for at least 30 minutes before baking to prevent spreading.
  • Natural peanut butter can be used but may result in a softer dough. 

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Looking for more comfort recipe like this? Come hang out with me over on Facebook and Pinterest where I drop new recipes, family favorites, and quick how-to guides almost every day.

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