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Peanut Butter Oatmeal Cookies

5 from 2 votes
Anna AlleeBy Anna Allee
Anna Allee
Anna Allee Food Writer

Passionate writer, editor, traveler and foodie, specializing in North American, European, Asian and Australian cuisines.

Expertise: Decadent Desserts, International Cuisine View all posts →
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Creamy peanut butter meets hearty oats—a tiny hug in cookie form. Your new favorite treat awaits!

A stack of golden-brown peanut butter oatmeal cookies on white parchment paper.

Sometimes, all you need at the end of a day is a warm, rich, and flavorful cookie. Chocolate chip is classic, of course, but it’s everywhere. Well, I’d like to introduce to you a cookie where creamy peanut butter meets hearty oats, where flavor and texture impress your taste buds with every bite. A cookie better known as a peanut butter oatmeal cookie!

These peanut butter oatmeal cookies are not your average treat; they’re little hugs in cookie form, perfect for satisfying that sweet tooth when it comes knocking. They’re soft and chewy, full of a rich, nutty flavor and a hint of sweetness. I like to enjoy these as a movie snack, preferably when it’s raining and I have a good film ready to go on my TV. But whether you’re dunking these in milk after dinner or putting a few in your little one’s lunch box, peanut butter oatmeal cookies are sure to bring a smile to the face of anyone enjoying them. So grab your apron and get baking!

Are These Peanut Butter Oatmeal Cookies Healthy?

While peanut butter provides protein and oatmeal provides fiber, which will both help you feel fuller and give you longer-lasting energy, these cookies do not skimp on butter and sugar. Therefore, they’re a treat that should be enjoyed in moderation. Those who are lactose intolerant can use a plant-based butter. To make the cookies fully vegan, use a flax “egg.” In a small bowl, mix one tablespoon of flax meal with three tablespoons of water. Leave this for ten minutes until it becomes gelatinous, and use it instead of the egg.

Peanut Butter Oatmeal Cookies

Can I Replace Old-Fashioned Oats With Instant Oats?

No, I do not recommend replacing the old-fashioned oats with instant oats. Instant oats absorb liquid differently and could therefore result in dry, dense cookies. Additionally, old-fashioned oats provide a nice texture, which allows you to enjoy a chewy oatmeal cookie. While I’m always a huge supporter of taking your own creative approach to recipes, please make sure to double-check any substitutions beforehand, as they may not work out.

A close-up of a peanut butter oatmeal cookie with a bite taken out, on white paper.

How Do I Store Leftovers?

Storing peanut butter oatmeal cookies is super simple, as they can be kept on your counter or in your pantry, in your fridge, or even in your freezer! In an airtight container, your cookies will stay delicious for 3-4 days at room temperature. In your fridge, your cookies can last up to 5 days. And in a freezer-safe, airtight container, your cookies will last up to 3-4 months in the freezer. However, don’t think storing your peanut butter oatmeal cookies in the freezer will save you from snacking on them. I have been known to grab one and eat it straight out of the freezer! It’s difficult to escape from their peanut buttery charms.

Peanut butter oatmeal cookies cooling on a black wire rack.

Serving Suggestions

Peanut butter oatmeal cookies are so delectable that enjoying them on their own is a perfectly acceptable snack. If you enjoy dunking your cookies, then of course a tall glass of milk (regular, almond, oat, whatever you fancy!) would pair well.

As a chocolate lover, I also think a Chocolate Fondue dip for these cookies would be phenomenal. And if you’re feeling ambitious, you could even crumble a few cookies into a vanilla or Chocolate Milkshake. Lastly, if you’re baking a bunch of cookies for an event or simply enjoying a cookie party for one, a few additional fun cookies to bake are Vegan Gluten-Free Oatmeal No-Bake Cookies, Vegan Pumpkin Cookies, or Carrot Cake Cookies.

A hand holds a bitten peanut butter oatmeal cookie over a white surface with crumbs.

Recipe

Peanut Butter Oatmeal Cookies

5 from 2 votes
Print Rate
Serves: 24 cookies
A stack of golden-brown peanut butter oatmeal cookies on white parchment paper.
Prep: 15 minutes minutes
Cook: 12 minutes minutes
Cool Time: 15 minutes minutes
Total: 42 minutes minutes

Ingredients

  • 1/2 cup unsalted butter softened
  • 1/2 cup granulated sugar
  • 1/2 cup packed light brown sugar
  • 1/2 cup creamy peanut butter
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 3/4 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 cup old-fashioned oats

Instructions

  • Preheat the oven to 350°F. Line baking sheets with parchment paper.
  • In a large bowl, cream together the butter, granulated sugar, brown sugar, and peanut butter until smooth. Beat in the egg and vanilla extract until well blended.
    Peanut Butter Oatmeal Cookies
  • Combine the flour, baking soda, and salt; stir into the creamed mixture. Mix in the oats until just combined.
    Peanut Butter Oatmeal Cookies
  • Drop tablespoonfuls of dough onto the prepared baking sheets, spacing them 2 inches apart.
    Peanut Butter Oatmeal Cookies
  • Bake in the preheated oven for 10 to 12 minutes, or until the edges are golden. Do not overbake to ensure they remain soft and chewy.
    Peanut Butter Oatmeal Cookies
  • Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
    Peanut Butter Oatmeal Cookies

Nutrition Info:

Calories: 130kcal (7%) Carbohydrates: 15g (5%) Protein: 2g (4%) Fat: 7g (11%) Saturated Fat: 3g (19%) Sodium: 75mg (3%) Fiber: 1g (4%) Sugar: 9g (10%)

Nutrition Disclaimer

Nutrition information are estimates only and may vary based on the specific brands, ingredients, and portion sizes you use. This data is provided for informational purposes only.

Author: Anna Allee
Course:Cookies
Cuisine:American
Share your creationsTag @foodfaithfit and hashtag it #foodfaithfitness so I can see what you made!
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Bright smiling woman with long brown hair at Fushimi Inari Shrine in Japan, traditional torii gates in the background, exploring cultural and travel content for Food Faith Fitness site.

About Anna AlleeDecadent Desserts, International Cuisine

Passionate writer, editor, traveler and foodie, specializing in North American, European, Asian and Australian cuisines.

Reader Interactions

Madeline Raynor

✓Reviewed by Madeline RaynorEditing & Writing, Vegetable Lover

Editorially reviewed and recipe-tested in line with our Editorial Policy.

Published: Aug 18, 2024 | Updated: Feb 26, 2026
5 from 2 votes (2 ratings without comment)

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