The Ultimate Peanut Butter and Oats Cookies Recipe

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This post may contain one or more affiliate links, which means I will get a small commission when you buy a product via the provided link at no cost to you! As an Amazon Associate, I earn from qualifying purchases. See my full disclaimer here.

Last weekend the boys and I wanted to bake some cookies. Ah well, I wanted to bake something and the boys helped me a bit. We did not have many ingredients left in our pantry so we came up with these delicious, soft, and chewy cookies made with peanut butter and oats!

With these simple ingredients and minimal prep time, they’re perfect for a quick snack or a wholesome treat. Plus, they’re freezer-friendly, so you can always have fresh cookies on hand!

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A pinterest pin with two images of these cookies. One overhead with a few cookies, a cloth, a cup of coffee. The other a close up of the same image but then taken from the front. A text overlay: "The Best Peanut Butter Oat Cookies Soft, Chewy, & Easy to Make! Livelifefromscratch.com".

What You’ll Love About This Recipe

  • HOMEMADE COMFORT FOOD – These peanut butter and oat cookies are soft, chewy, and packed with nutty goodness!
  • KID-FRIENDLY BAKING RECIPE – Made with simple ingredients and minimal prep time, this is a perfect snack or wholesome treat. A great recipe to make with your kids!
  • PERFECT FOR PREPPING – These cookies are freezer-friendly, so you can always have fresh cookies on hand! Surprise visitor? No problem—you’ll have fresh cookies ready in no time!

A Few Ingredients and Substitutions for this Peanut Butter and Oats Cookies Recipe

Here are a few ingredients and their substitutions you’ll need to make these delicious, chewy cookies:

Unsalted Butter

By adding unsalted butter you’ll add richness and flavor. You can replace butter with coconut oil for a dairy-free version.

I recommend using room-temperature butter, as it’s much easier to incorporate into the cookie dough. But if you’re like me and don’t always plan ahead (or just don’t plan period..), using cold butter isn’t a big problem—your cookies will still be absolutely delicious!

Peanut Butter

You can use either homemade or store-bought peanut butter. I love to make my own peanut butter so I know exactly what I put into my cookies!

Light Brown Sugar

Because light brown sugar contains a small part of molasses it adds a chewy texture to your cookie. You can substitute it with coconut sugar, maple syrup, or honey if you don’t want to use refined sugar.

An Egg

By adding an egg to your peanut butter cookie dough you’ll bind the ingredients together. No egg in your pantry? You can swap an egg with a flax egg. Make a flax egg by adding 1 tbsp flaxseed to 3 tbsp of water.

Vanilla Extract

Gives your cookie a delicious vanilla flavor. You can substitute vanilla extract with a vanilla pod.

Supplies You’ll Need for this Peanut Butter and Oats Cookies Recipe

Having the right tools makes baking easier and more fun! Here are some essentials I personally use and recommend:

This post may contain one or more affiliate links, which means I will get a small commission when you buy a product via the provided link at no cost to you! As an Amazon Associate, I earn from qualifying purchases. See my full disclaimer here.

  • Mixing bowl – A sturdy, deep bowl makes mixing the dough effortless.
  • Wooden spoon – Perfect for stirring thick cookie dough without breaking. Made from natural wood, so you don’t have to worry about chemicals or plastic in your cookies!
  • Stand mixer or hand mixer with dough hooks – Helps combine ingredients quickly and evenly.
  • Cooling rack – Allows cookies to cool properly, preventing sogginess.

Step-by-Step Instructions

First, start with preheating your oven to 356°F or 180°C.

Then, mix the wet ingredients. In a large mixing bowl, combine the butter, peanut butter, sugar, egg, vanilla extract, cinnamon, and salt. Mix until you have a smooth batter using a wooden spoon or a mixer.

A mixing bowl, wooden spoon, and batter with chunks of butter.
As you can see, I forgot to take out the butter out of the fridge on time. Doesn’t matter for the taste of your cookies but using butter that is at room temperature will make mixing a whole lot easier!

Add in your dry ingredients. Take rolled oats, all-purpose flour, and baking powder and add them to your mixing bowl. Stir until you have a slightly sticky cookie dough.

A bowl with a wooden spoon, cookie dough with rolled oats.

Time to get your hands dirty! Take small pieces of dough and roll into small balls.

A baking plate, balls of cookies unbaked, a wooden background and a bowl with cookie dough.

Place them on the baking plate and gently flatten each cookie to about ½ inch thick.

A baking plate, flattened cookies unbaked, a wooden background and a bowl with cookie dough.

Bake the cookies for about 15 minutes until golden brown. The cookies will still be soft when you take them out of the oven. Let them cool on the baking plate for a few minutes before transferring them to a cooling rack.

A cooling rack with cookies on a wooden background.

The peanut butter and oats cookies will firm up but remain soft and chewy in the center.

A hand that breaks a cookie in half.

Recipe Variations & Mix-Ins

  • Chocolate Chip Peanut Butter Oat Cookies: Stir in ½ cup of chocolate chips before baking.
  • Nutty Delight: Add ¼ cup of chopped walnuts or pecans for extra crunch and a rich flavor.
  • Dairy-Free Version: Use coconut oil instead of butter and a flax egg instead of a regular egg.
  • Chewy Raisin Cookies – Mix in ½ cup of raisins for a naturally sweet and chewy twist.

Peanutbutter and Oats Cookies

With this recipe, you'll bake around 12 – 16 peanut butter and oats cookies
Print Recipe
Peanut butter and oats cookies with a cloth in the background on a wooden plate.
Prep Time:10 minutes
Cook Time:15 minutes
Total Time:25 minutes

Equipment

  • 1 Mixing bowl
  • 1 Wooden spoon or spatula
  • 1 Oven (356 °F or 180 °C)
  • 1 cooling rack
  • 1 stand mixer or hand mixer (with dough hooks) optional

Ingredients

  • 1 stick unsalted butter (110 grams)
  • ½ cup peanut butter (125 grams)
  • 1 cup light brown sugar (170 grams)
  • 1 egg
  • ½ tsp vanilla extract or 1 vanilla pod
  • 1 tsp cinnamon powder
  • ¼ tsp salt
  • 2 cups rolled oats (180 grams)
  • ½ cup all-purpose flour (70 grams)
  • 1 tsp baking powder

Instructions

  • Start with preheating your oven to 356 °F or 180 °C.
  • In a mixing bowl, add 1 stick of unsalted butter, ½ a cup of peanut butter, 1 cup of light brown sugar, one egg, ½ tsp of vanilla extract, 1 tsp of cinnamon powder, and ¼ tsp of salt. Mix with your hands, a wooden spoon, or a mixer with dough hooks.
  • Add in 2 cups of rolled oats, ½ cup of all-purpose flour, and 1 tsp of baking powder, and mix until you have a slightly sticky dough.
  • Form balls of dough, put them on the baking plate, and press until they are about ½ an inch thick.
  • Bake the cookies in the oven for about 15 minutes. After baking the cookies will be soft, put them on a cooling rack. When cooled to room temperature the cookies still have a chewy center.

Notes

  • Use homemade peanut butter for a truly from scratch cookie!
  • Want freshly baked cookies anytime? Freeze the dough! Simply place the flattened dough balls on a baking sheet and freeze overnight. In the morning, transfer the frozen dough to an airtight container or zip-lock bag for easy baking later.
  • Store these delicious peanut butter and oat cookies in a zip-lock bag or an airtight container for up to 5 days.
  • You can also freeze the cookies for up to 3 months in an airtight container.
Servings: 12 peanut butter and oats cookies
Peanut butter and oats cookies on a wooden plate with a blue/white cloth in the background.

This post may contain one or more affiliate links, which means I will get a small commission when you buy a product via the provided link at no cost to you! As an Amazon Associate, I earn from qualifying purchases. See my full disclaimer here.

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