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Flourless Oatmeal Cookies Recipe


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4.3 from 70 reviews

  • Author: Ava
  • Total Time: 22 minutes
  • Yield: 19 cookies
  • Diet: Gluten Free

Description

Delicious and easy Flourless Oatmeal Cookies made with quick cooking oats, brown and white sugars, and a touch of butter. These cookies are naturally gluten-free when using certified gluten-free oats, offering a soft, chewy texture with a perfect balance of sweetness. Perfect for a quick baking treat without the need for flour.


Ingredients

Cookie Dough

  • 1/2 cup unsalted butter, room temperature (1 stick)
  • 3/4 cup brown sugar
  • 1/4 cup white sugar
  • 1 large egg
  • 2 1/2 cups quick cooking oats (ensure gluten-free if needed)
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon kosher salt


Instructions

  1. Preheat Oven: Preheat your oven to 350 degrees Fahrenheit to ensure it’s at the perfect temperature for baking the cookies evenly.
  2. Cream Butter and Sugars: In a stand mixer on medium speed, cream together the unsalted butter, brown sugar, and white sugar for about four minutes until the mixture becomes lighter in color and fluffy in texture.
  3. Add Egg: Beat in the egg on medium speed until it is fully incorporated. Use a spatula to scrape down the bowl if needed to blend everything well.
  4. Combine Dry Ingredients: Add the quick cooking oats, baking soda, and kosher salt to the mixing bowl. Beat again on medium speed until all the ingredients are thoroughly combined into a consistent dough.
  5. Portion the Cookies: Using a small portion scoop, place five cookie dough mounds onto a silpat mat or parchment-lined baking sheet. Be sure to space them apart since the cookies will spread during baking.
  6. Bake: Bake the cookies in the preheated oven for 11 minutes. The edges should be brown while the centers remain slightly underdone; this allows the cookies to set perfectly as they cool.
  7. Repeat: Continue scooping and baking the remaining cookie dough in batches until all dough is used.
  8. Cool and Serve: Let the cookies cool fully on the baking sheet before enjoying to allow them to firm up and reach their ideal texture.

Notes

  • Use certified gluten-free oats if you want these cookies to be gluten-free.
  • Do not overbake; cookies should have slightly underdone centers when removed from oven for best texture.
  • Room temperature butter ensures proper creaming with sugars for a fluffy cookie base.
  • You can substitute kosher salt with sea salt if needed but keep quantity the same.
  • Store cooled cookies in an airtight container at room temperature for up to 5 days.
  • Prep Time: 7 minutes
  • Cook Time: 11 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American