Billie Eilish’s peanut butter cookies are naturally vegan and gluten-free. Oat flour peanut butter cookies without eggs or dairy are soft, chewy, and loaded with melty chocolate chunks. 

A white plate with three oat flour peanut butter cookies with melty dark chocolate chunks. These soft chewy peanut butter cookies are vegan and gluten free.

We have made many peanut butter cookie recipes, but this is the recipe we come back to and make week after week. Though we are huge Billie fans, that’s not why we love this recipe. Billie Eilish originally posted her vegan, gluten-free peanut butter cookie recipe on Instagram stories, but they have now been removed. 

Unlike some peanut butter cookies that are dense and dry, these oat flour peanut butter cookies are moist and chewy. For this reason, we love using oat flour in gluten-free baking – like in our Vegan + Gluten Free Chocolate Banana Muffins

Is Billie Eilish Vegan? 

Yes, Billie Eilish is vegan. She has been vocal about her commitment to veganism as part of her lifestyle and dietary choices.

Billie and her mom Maggie Baird are known to be animal and climate activists. Maggie started and runs a nonprofit called Support + Feed, whose mission is: “Support + Feed combats the climate crisis and food insecurity by working toward a global shift to an equitable, plant-based food system.” 

Ingredients in Billie’s Vegan Gluten-Free Peanut Butter Cookies

The ingredients for Billie Eilish oat flour peanut butter cookies on a marble countertop. Ingredients in bowls are: oat flour, peanut butter, brown sugar, baking soda, almond milk, vanilla, and chopped dark chocolate.

This vegan peanut butter cookie recipe calls for very simple ingredients that we always have on hand. 

  • Oat Flour: We like to use the oat flour from Bob’s Red Mill. However, most of the time we simply make our own oat flour by blending oats. If you’re gluten-free, be sure your oats or oat flour are certified gluten-free as oats can be cross-contaminated during processing. 
  • Peanut Butter: We use natural creamy salted peanut butter but have tested this recipe with all types of peanut butter successfully. 
  • Brown Sugar: Light or medium brown sugar works best here and creates a soft and chewy cookie. 
  • Baking Soda: This leavening ingredient perfectly puffs up these cookies. 
  • Salt: These cookies need just a little pinch of salt, but add more if your peanut butter is unsalted. A little flaky sea salt on top is tasty too. 
  • Vanilla: We use homemade vanilla extract, which is why some of the seeds are visible in the image above. 
  • Chocolate: Chopped vegan dark chocolate is best for these cookies. 

How to Make Oat Flour Peanut Butter Cookies

15 balls of vegan gluten-free peanut butter cookies on a parchment-lined cookie sheet. A cookie scoop sits in the top right corner.

We recommend using a stand mixer to cream together the peanut butter and brown sugar. Next, the oat flour, baking soda, and salt are mixed in. Vanilla and plant-based milk are added until the dough forms. 

A cookie scoop helps create uniform cookies. Just like any other peanut butter cookie, they get pressed down with a fork. 

An overhead photo of delicious freshly baked oat flour peanut butter chocolate chunk cookies on a parchment lined cookie sheet.

How to Store Billie Eilish’s Peanut Butter Cookies 

Peanut butter cookies can typically last up to 5-7 days when stored properly in an airtight container at room temperature. If refrigerated, they can last even longer, up to 1-2 weeks. 

A white plate with three healthy vegan gluten free peanut butter cookies with dark chocolate chunks on a grey background.      

Thanks to Billie Eilish for sharing this healthy vegan, gluten-free peanut butter cookie recipe! 

Yield: 16 cookies

Billie Eilish's Peanut Butter Cookies

Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes

This peanut butter cookie recipe comes from Billie Eilish as shared on her Instagram stories. It's our absolute favorite peanut butter cookie recipe that we make over and over. Made with gluten-free oat flour, these cookies are naturally vegan and gluten-free. Oat flour helps keep these peanut butter cookies soft and moist.

Billie Eilish's Peanut Butter Cookies


  • 1 cup brown sugar, loosely packed
  • 1 cup peanut butter
  • 2 teaspoons vanilla extract
  • 1 cup oat flour (gluten-free if needed)
  • 1 teaspoon baking soda
  • pinch of salt
  • 1/4 cup almond milk
  • 1/3 cup chocolate chips or chunks


  1. Preheat the oven to 350° F. Line a cookie sheet with parchment paper or a silicon baking mat.
  2. In the bowl of mixer, cream together the brown sugar, peanut butter, and vanilla.
  3. In another bowl, whisk together the oat flour, baking soda, and salt.
  4. Beat the oat flour mixture into the peanut butter mixture. Add the plant-based milk and continue beating until the mixture forms a dough. You may need to add a little more milk if your peanut butter is very dry. Oat flour peanut butter cookie dough in a Kitchenaid mixer.
  5. Stir in the chocolate. Use a cookie scoop or spoon to make balls of cookie dough and roll between your hands. Place on the prepared cookie sheet. Use a fork to press the balls down into disks. A fork presses peanut butter chocolate chunk cookies on a cookie sheet.
  6. Bake the cookies for 10-12 minutes. Cool completely, as these peanut butter cookies will set as they cool.
Nutrition Information:
Yield: 16 Serving Size: 1 cookie
Amount Per Serving: Calories: 185Total Fat: 10gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 0mgSodium: 162mgCarbohydrates: 22gFiber: 2gSugar: 14gProtein: 5g

Nutrition information is automatically calculated by Nutritionix. I am not a nutritionist and cannot guarantee accuracy. If your health depends on nutrition information, please calculate again with your favorite calculator.