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Peanut Butter Oatmeal Cookies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.2 from 54 reviews
  • Author: Lily
  • Prep Time: 15 minutes
  • Cook Time: 17 minutes
  • Total Time: 3 hours 32 minutes
  • Yield: 30 cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

Deliciously chewy peanut butter oatmeal cookies made with creamy peanut butter, quick oats, and peanut butter chips for extra richness. These classic cookies offer a perfect balance of sweet and salty flavors, enhanced by a optional sprinkle of flaky sea salt. Chilled dough ensures a perfect texture and flavor development, making them irresistible for any peanut butter lover.


Ingredients

Wet Ingredients

  • 1 cup unsalted butter, room temperature
  • 1 cup granulated sugar
  • 1 cup lightly packed light brown sugar
  • 1 ½ cups creamy peanut butter (we used JIF)
  • 2 large eggs
  • 2 teaspoons pure vanilla extract

Dry Ingredients

  • 1 ¾ cups all-purpose flour
  • 2 teaspoons baking soda
  • 1 teaspoon fine sea salt
  • 1 ½ cups quick-cooking oats

Add-ins and Toppings

  • 1 bag Reese’s Peanut Butter Chips (10 ounces)
  • Flaky sea salt (optional)


Instructions

  1. Cream wet ingredients: In the bowl of a stand mixer fitted with the paddle attachment or in a large bowl using an electric mixer, cream the unsalted butter, granulated sugar, light brown sugar, and creamy peanut butter together until the mixture is light and fluffy, about 3 minutes. Then beat in the eggs one at a time, followed by the vanilla extract, mixing until fully incorporated.
  2. Combine dry ingredients: In a separate large bowl, sift together the all-purpose flour, baking soda, and fine sea salt. Gradually add these dry ingredients to the wet peanut butter mixture, mixing until thoroughly combined. Stir in the quick-cooking oats, then fold in the peanut butter chips evenly throughout the dough.
  3. Chill the dough: Cover the cookie dough and chill it in the refrigerator for at least 3 hours, or up to 2 days, to allow the flavors to meld and the dough to firm up for easier scooping.
  4. Preheat and prepare baking sheets: When ready to bake, preheat the oven to 350°F (175°C). Line baking sheets with parchment paper. If the dough is too firm, let it rest at room temperature for 30-40 minutes before scooping.
  5. Scoop and bake: Using a large cookie scoop (about 3 tablespoons), scoop cookie dough onto the prepared baking sheets, spacing them a few inches apart. Bake in the preheated oven for 16-18 minutes, or until the edges turn golden brown. If desired, immediately sprinkle the warm cookies with flaky sea salt for a flavor contrast.
  6. Cool the cookies: Allow the cookies to cool on the baking sheets for 5 minutes after baking, then transfer them to wire racks to cool completely before serving or storing.

Notes

  • Chilling the dough is essential for proper texture and flavor development.
  • Letting the dough rest at room temperature after chilling helps with easier scooping.
  • Flaky sea salt is optional but enhances the peanut butter flavor wonderfully.
  • Store cookies in an airtight container at room temperature for up to 5 days or freeze for longer storage.
  • For a crunchier cookie, bake for an additional 1-2 minutes, but be careful not to overbake.