Our easy Oatmeal Peanut Butter Cookies hit all the right notes with their perfect blend of sweetness and nuttiness! These cookies, which bring together the flavors and textures of both oatmeal cookies and peanut butter cookies, are so soft, chewy, and bursting with delicious peanut butter flavor. With just ten simple ingredients and a baking time of around 20 minutes, they’re not only easy to make but also perfect for bake sales, holiday parties, or simply as an everyday treat!

You might be tempted to keep these all to yourself — sometimes we certainly are! But regardless of whether you intend to snack solo or serve them at a celebration, you can whip up a batch in nearly no time — just be warned that everyone will want to rush to the kitchen once they smell these sweet treats!

Oatmeal peanut butter cookies.

The perfect mash-up of soft peanut butter cookies and chewy oatmeal cookies, these peanut butter oatmeal cookies are a dessert you need to add to your recipe box right away! Quick to prepare and bake, they become crisp around the edges while remaining soft and chewy in the center. 

Plus, they’re easy to spruce up with fun mix-ins and can easily be made with almond butter, cashew butter, or sunflower butter to accommodate allergies. Trust us when we say, these cookies will disappear fast! 

Notes on the Ingredients You’ll Need

Believe it or not, less than ten simple ingredients are all you need to make a drool-worthy peanut butter oatmeal cookies recipe!  

  • Old-Fashioned Oats – Make sure to use old-fashioned oats, not quick oats or steel-cut oats. The taste and texture won’t be the same! Old-fashioned oats are larger and chewier than other varieties. 
  • All-Purpose Flour – This adds extra structure to the cookies, helping them hold their shape and enhancing the chewy texture. 
  • Baking Soda – Make sure it’s fresh!
  • Salt – A little goes a long way to enhance the flavor of the rest of the ingredients 
  • Cinnamon – Not found in every peanut butter oatmeal cookie recipe, this adds extra warmth and depth, enhancing the sweetness. 
  • Butter – Unsalted butter is best. Allow it to come to room temperature for easy mixing. 
  • Peanut Butter – We recommend using creamy peanut butter, but chunky will work, too. Just don’t use natural peanut butter as it will separate and cause your cookies to become oily. JIF, Skippy, or a similar brand are best. 
  • Sugar – A combination of granulated sugar and brown sugar is used to sweeten the cookie dough while keeping it soft and moist. 
  • Eggs – We use a large egg and an extra egg yolk to provide structure to the dough along with a super rich, gooey taste and texture. 
  • Vanilla Extract – Use high-quality pure vanilla extract. 
Close up image of an oatmeal peanut butter cookie.

How to Make Oatmeal Peanut Butter Cookies that Are Soft and Chewy

With minimal prep time and a cook time of less than 15 minutes, this might be the easiest, most delicious cookie recipe you’ll ever make! 

  1. Prepare. Before you begin, preheat your oven, and line two large baking sheets with Silpat baking mats or parchment paper
  2. Whisk the dry ingredients. In a medium bowl, whisk together the oats, flour, baking soda, salt, and cinnamon. 
  3. Beat the wet ingredients. Using a stand mixer or a hand mixer and a large bowl, beat the butter, peanut butter, and both sugars together on medium speed until smooth and creamy. Add the egg, egg yolk, and vanilla, and mix again until well combined. 
  4. Combine the wet and dry ingredients. With the mixer on low, slowly add the dry ingredients to the bowl of wet ingredients, and mix just until combined. 
  5. Bake. Use a cookie scoop to portion the dough, and arrange them on the prepared baking sheets, leaving space in between each cookie. Transfer the sheets to the oven, and bake just until the cookies are lightly browned around the edges. 
  6. Cool. Allow the oatmeal peanut butter cookies to cool on the baking sheets for a few minutes before transferring them to a cooling rack to cool completely.

A Few Baking Tips

Chill the Dough. If you want extra thick and chewy cookies, simply chill the dough before baking! Simply assemble the dough, and cover the bowl with plastic wrap.

It can be stored in the fridge for up to 48 hours before baking. Just be sure to add a few extra minutes of baking time as needed! 

Avoid Overbaking. The key to creating soft and chewy oatmeal peanut butter cookies it to slightly underbake them. You’ll want to remove them from the oven as soon as the edges begin to turn golden brown and the center is still soft. They’ll continue to bake and set as they cool! 

How to Store

Once cooled, leftover cookies can be transferred to an airtight container or sealable bag and stored at room temperature for up to one week

How to Freeze

Baked cookies can be frozen for up to three months. To prevent them from clumping together, place a piece of parchment paper between each cookie! 

Unbaked cookie dough can be frozen for up to three months. Assemble the dough as the recipe instructions state, arranging the balls on baking sheets. Then, place them in the freezer until solid, and transfer them to a sealable bag. 

When you’re ready to eat, simply bake from frozen, adding a few minutes of baking time as needed. No need to thaw first! 

Overhead image of peanut butter oatmeal cookies.

Common Questions About This Easy Oatmeal Peanut Butter Cookies Recipe

Why are my oatmeal cookies fluffy? 

Beating the ingredients too much can add too much air to the dough, causing the cookies to become soft and fluffy. Be careful to mix slowly until just combined! 

Should oatmeal cookies be refrigerated before baking? 

We don’t, but it can help prevent excess spreading. 

Can I add mix-ins? 

Absolutely! Once the dough is combined, feel free to fold in chocolate chips, peanut butter chips, chopped nuts, coconut flakes, candy pieces, or any add-ins you like best. Alternatively, you could also gently press them into the tops of the cookies just before baking. 

We’re firm believers that you can never have too many cookies around. That’s why we have plenty more cookie recipes for you to check out!

Oatmeal peanut butter cookies with one split in half.

Oatmeal Peanut Butter Cookies

5 from 2 votes
Author: Food Dolls
Servings: 24 servings
Prep: 10 minutes
Experience the best of desserts with the crisp edges, soft, chewy center, and sweet flavor of these easy oatmeal peanut butter cookies!


  • 2 cups old fashioned oats
  • 3/4 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground cinnamon
  • 3/4 cup unsalted butter at room temperature
  • 3/4 cup creamy peanut butter (not natural pb)
  • 1 cup granulated sugar
  • 1/2 cup light brown sugar
  • 1 large egg + 1 yolk
  • 1 teaspoon vanilla extract


  • Preheat the oven to 350 degrees F. Line two large baking sheets with Silpat baking matsor parchment paper. Set aside.
  • In a medium bowl, whisk together the oats, flour, baking soda, salt, and cinnamon. Set aside.
    2 cups old fashioned oats, 3/4 cup all-purpose flour, 1/2 teaspoon baking soda, 1/2 teaspoon salt, 1/2 teaspoon ground cinnamon
  • Using a mixer, beat the butter, peanut butter, and sugars together until creamy, this will take about 2 minutes, on medium speed. Beat in the egg and vanilla extract. Mix until well combined.
    3/4 cup unsalted butter at room temperature, 3/4 cup creamy peanut butter, 1 cup granulated sugar, 1/2 cup light brown sugar, 1 large egg + 1 yolk, 1 teaspoon vanilla extract
  • On low, add in the dry ingredients and mix until just until the combined.
  • Scoop the cookies into round balls (1/4 cup sized) and place on the prepared baking sheets, leaving 2 inches in between cookies. Bake for 10-12 minutes, or until the cookies are lightly browned around the edges, but still soft in the middle.
  • Remove cookies from oven and let cool on the baking sheet for about 5 minutes. Transfer to a wire rack and cool completely.


Serving: 1serving | Calories: 194kcal | Carbohydrates: 22g | Protein: 4g | Fat: 11g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.2g | Cholesterol: 29mg | Sodium: 159mg | Potassium: 88mg | Fiber: 1g | Sugar: 14g | Vitamin A: 197IU | Vitamin C: 0.002mg | Calcium: 16mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Meet Alia & Radwa

Welcome to Food Dolls! We’re so glad you found us. We are Alia and Radwa, sisters who want to share simple and easy recipes with you. We hope you find recipes here that you enjoy making as much as we do! Learn more about us!

5 from 2 votes (2 ratings without comment)

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