Soft & Chewy: Oatmeal Peanut Butter Cookies

Our simple Oatmeal Peanut Butter Cookies hit all the right notes with their reliable 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 tasty peanut butter flavor. With just ten simple ingredients and a baking time of around 20 minutes, they’re not only simple to make but also reliable 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!

A Cookie Jar Go-to: Soft Oatmeal Peanut Butter Cookies You’ll Love

The reliable 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! Speedy to prepare and bake, they become crisp around the edges while remaining soft and chewy in the center.

Plus, they’re simple 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 speedy 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 finest. Allow it to come to room temperature for simple mixing.
Peanut Butter – We recommend using silky 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 finest.
Sugar – A combination of granulated sugar and brown sugar is used to sweeten the cookie dough while keeping it soft and tender.
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 tasty cookie recipe you’ll ever make!

Prepare. Before you begin, preheat your oven, and line two large baking sheets with Silpat baking mats or parchment paper.
Whisk the dry ingredients. In a medium bowl, whisk together the oats, flour, baking soda, salt, and cinnamon.
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 silky. Add the egg, egg yolk, and vanilla, and mix again until well combined.
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.
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.
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 Simple Oatmeal Peanut Butter Cookies Recipe

What makes oatmeal peanut butter cookies soft and chewy?

It’s all about the right ratio of fat, sugar, and oats. Silky peanut butter adds richness, brown sugar keeps them tender, and the oats give them that satisfying chew.

Can I add chocolate chips or other mix-ins?

Absolutely! Chocolate chips, chopped peanuts, raisins, or even butterscotch chips take these cookies to the next level. Feel free to mix and match your favorites.

Do I need to chill the cookie dough?

You don’t have to, but chilling can help prevent spreading and enhance the texture. If your dough feels a little sticky, pop it in the fridge for 30 minutes before baking.

How do I keep oatmeal peanut butter cookies soft after baking?

Store them in an airtight container with a slice of bread—the cookies will stay soft and chewy for days! You can also freeze them for long-term storage.

More Simple Cookie Recipes

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!

the Ayyem kitchenServings: 24 servings

Prep: 10 mins
Cook: 10 mins
Total: 20 mins

Experience the finest of desserts with the crisp edges, soft, chewy center, and sweet flavor of these simple oatmeal peanut butter cookies! Email

Ingredients

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 silky peanut butter (not natural pb)
1 cup granulated sugar
1/2 cup light brown sugar
1 large egg + 1 yolk
1 teaspoon vanilla extract

Instructions

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 silky, 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 silky 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.