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Close up of an oatmeal cookie with cranberries and walnuts in it.

3-Ingredient Oatmeal Cookies

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 22 reviews
  • Author: Deryn Macey
  • Prep Time: 5 mins
  • Cook Time: 15 mins
  • Total Time: 20 minutes
  • Yield: 12
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegan


These three ingredient oatmeal cookies with no egg or banana are perfect for a quick and easy treat anytime of day. They’re yummy as is but even better with add-ins like chocolate chips and walnuts!


Optional Ingredients


  1. Pre-heat the oven to 350 degrees and prepare a baking tray with parchment paper.
  2. Add the nut or seed butter and maple syrup to a mixing bowl and stir together until smooth and fully combined. If you’re adding vanilla, mix it in now as well.
  3. Add the oats and any other add-ins you’re using and mix into a thick, sticky dough. Depending on the consistency of your nut butter, you may need to add a bit of extra maple syrup or nut butter or a bit more oats. The dough should be a thick, sticky, cookie dough consistency. 
  4. Using a spoon or small cookie scoop, create 12 roughly equal-sized clumps, placing on the baking tray. It’s helpful to wet your hands so the dough doesn’t stick to you. The cookies will not spread during baking, so press each one down a bit to form a cookie shape.
  5. Bake for 15 minutes then allow to cool on the pan before handling so they can firm up.


Be sure to use creamy, drippy nut or seed butter that’s nearly pourable in consistency. You can use almond butter, peanut butter or cashew butter or for nut-free cookies, tahini or sunflower seed butter. 

For best results, measure ingredients using a digital scale to ensure accuracy and success.


  • Serving Size: 1 cookie
  • Calories: 122
  • Sugar: 6 g
  • Fat: 6 g
  • Carbohydrates: 15 g
  • Fiber: 2 g
  • Protein: 3 g