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    Home » Recipes » Gluten Free Cookies & Bars

    Oat Flour Sugar Cookies

    Modified: Dec 5, 2024 · Published: Dec 4, 2023 by Nicole Spiridakis ·

    Jump to Recipe Print Recipe

    Tender gluten free oat flour sugar cookies are as perfect in the holiday cookie tin as they are all year round. Oat flour plus pure vanilla extract, good butter, and just enough sugar make these cookies stand out.

    A plate of oat flour sugar cookies.

    These oat flour sugar cookies make the best holiday cookies, although I advise you to bake them all year long! Like my recipes for maple shortbread, gluten free shortbread, and gluten free sugar cookies, this oat flour sugar cookies recipe comes together quickly and forms a beautifully sturdy dough that's easy to roll out and cut into any shape your heart desires.

    Jump to:
    • Why You'll Love These Oat Flour Sugar Cookies
    • What You'll Need
    • How to Make Oat Flour Sugar Cookies
    • Baking Tip: Decorate!
    • Tips and Variation Suggestions
    • Serving Suggestions
    • Proper Storage
    • More Gluten Free Cookie Recipes
    • Oat Flour Sugar Cookies

    Why You'll Love These Oat Flour Sugar Cookies

    These are traditional sugar cookies made with simple ingredients and hit all the notes you want in a classic cookie. Here's why you'll love this delicious recipe for oat flour sugar cookies:

    • Gluten-free yet you'd hardly know it! Naturally gluten-free oat flour performs beautifully in this recipe, mimicking a traditional sugar cookie made with all-purpose flour.
    • Easily adaptable. Dress these cookies up with sprinkles or frosting or serve them plain. This solid recipe delivers big on flavor every time, no matter how you finish them.
    • Quick and simple. You'll be able to find all of the ingredients needed at your local grocery store, and it take just minutes to put the dough together.

    What You'll Need

    From simple ingredients comes something so good! The full ingredient amounts and instructions will be in the recipe card at the end of this post.

    Ingredients for oat flour sugar cookies.
    • Oat flour - A beautifully versatile naturally gluten-free flour, oat flour is delicious in this recipe and the only flour needed. Swap all purpose gluten free flour like my homemade gluten free flour blend if needed, or try brown rice flour.
    • Baking powder - Make sure to use fresh baking powder for the best results!
    • Butter - I use unsalted butter in my baking recipes but salted butter will work in a pinch. Slightly reduce the amount of salt to compensate.
    • Egg - Use a large egg at room temperature so that it blends in easily.
    • Vanilla extract - Use a good-quality, pure vanilla extract in these cookies because you'll really be able to taste the flavor.
    • Salt - I always use fine grain sea salt in my recipes!
    • Sugar - Just the right amount of granulated sugar sweetens these cookies.
    A hand reaches for an oat flour sugar cookie in the shape of a snowflake.

    How to Make Oat Flour Sugar Cookies

    Creamed butter and sugar.
    cream butter and sugar
    Oat flour sugar cookie dough in a bowl.
    form dough
    Oat flour sugar cookies dough rolled out.
    roll out dough
    Baked oat flour sugar cookies.
    cut shapes and bake
    1. Cream butter: Combine the butter and sugar, then add the egg and vanilla.
    2. Add dry ingredients: Beat in the oat flour, baking powder, and salt, then place in the fridge to chill.
    3. Roll and cut: Soften the cookie dough at room temp for a few minutes, then roll out the dough into a sheet. Use cookie cutters to cut the dough into shapes.
    4. Bake: Place the cookies on lined baking sheets and bake them at 350 F for 12-15 minutes.Place in oven and bake until firm and set.

    Baking Tip: Decorate!

    You absolutely don't need to save this oat flour sugar cookies recipe just for Christmas! But if you make them for the holidays, definitely go all in on sprinkles, frosting, or crushed candy canes for crunch and color.

    Tips and Variation Suggestions

    If you've made sugar cookies, you know that they're not a fussy cookie, but you'll need to follow a few best practices to avoid any sticky dough (or, conversely, dry dough that cracks when you roll it out). I've included a few tips plus some variations below:

    • Rest the dough: Let the dough rest and chill in the fridge for at least 15 minutes before baking, or up to 3 days in advance of baking. Oat flour, like all gluten-free flours, benefits from a rest to let it absorb liquids. This
    • Use room temperature ingredients: Bring ingredients to room temperature before using. This is particularly important for the butter - if it's nice and soft, it will incorporate better into the batter, making for a smoother and more uniform cookie.
    • Use good quality ingredients: There are so few ingredients in these cookies that it's important to try to use decent-quality ingredients! Choose pure vanilla extract and good butter to make these oat flour sugar cookies the best they can be.
    • Make ahead: You can prepare the dough and hold it in the fridge for up to 5 days, or freeze the dough for up to 3 months. Defrost it in the fridge before rolling out.
    • Don't worry if the dough is crumbly. When you're combining the dough, it may seem a bit dry and crumbly. Don't worry! Keep beating the ingredients until they come together. If needed, you can use your hands to squeeze and knead the dough together a few times.
    • Make them dairy-free: You can easily make these oat flour cookies dairy-free. Swap a non-dairy butter or slightly softened coconut oil for the butter.
    • Make them vegan: Substitute for the butter as detailed above, and either omit the egg or use a flax egg substitute.
    • Make them refined sugar-free: I love to use maple sugar when I make sugar cookies. The subtle, natural sweetness of the maple sugar take them over the top (and, make them refined sugar-free!).
    • Oat flour substitute: If you don't eat oats, you can use sorghum flour, or try an all-purpose 1:1 gluten-free baking flour.
    A plate of oat flour sugar cookies topped with sprinkles on a plate with two cups of tea and two small plates of cookies.

    Serving Suggestions

    Oat flour sugar cookies are absolutely perfect with other gluten free Christmas cookies in the cookie tin. Bake a batch of cookies ahead of the holidays and stash them in the freezer for when unexpected guests drop by. They defrost quickly, and a plate is perfect with a hot cup of coffee or tea. Or, use this recipe as a sugar cookie base for all sorts of occasions, from Valentine's Day to birthdays to just because.

    Plates of oat flour sugar cookies and a cup of tea on a white background.

    Proper Storage

    • Counter - Store cookies in an airtight container at room temperature for up to 5 days.
    • Fridge - Keep oat flour sugar cookies in an airtight container or sealable bag in the fridge for up to 10 days. You can store the dough, well wrapped in plastic, for up to 5 days in the fridge.
    • Freezer - Place layers of cookies with parchment paper in between them in an airtight, freezer-safe container for up to 3 months. Thaw the cookies in the fridge before eating.

    More Gluten Free Cookie Recipes

    • A plate of gluten free chocolate chip cookies.
      Gluten Free Chocolate Chip Cookies
    • Plates of oat flour sugar cookies and a cup of tea on a white background.
      Oat Flour Sugar Cookies
    • A white plate full of gluten free oatmeal chocolate chip cookies.
      Gluten Free Oatmeal Chocolate Chip Cookies
    • Gluten-free peanut butter cookies on a white plate.
      Gluten-Free Peanut Butter Cookies

    If you tried these oat flour sugar cookies or any other recipe on my website, please let me know how it went in the comments below! And I always appreciate a star rating if you loved it ❤️


    Plates of oat flour sugar cookies and a cup of tea on a white background.
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    Oat Flour Sugar Cookies

    Nicole Spiridakis
    Tender and buttery oat flour sugar cookies are as perfect in the holiday cookie tin as they are all year round. Naturally gluten-free oat flour plus pure vanilla extract, good butter, and sugar make these cookies stand out.
    4.87 from 15 votes
    Print Recipe Pin Recipe
    Prep Time 2 hours hrs
    Cook Time 10 minutes mins
    Total Time 2 hours hrs 10 minutes mins
    Course Dessert
    Cuisine American
    Servings 24 cookies
    Calories 89 kcal

    Ingredients
     
     

    • ½ cup unsalted butter at room temperature
    • 1 cup sugar
    • 1 large egg
    • 1 teaspoon pure vanilla extract
    • 2 ¾ cups gluten-free oat flour , 300 grams
    • ½ teaspoon baking powder
    • ¼ teaspoon fine sea salt

    Instructions
     

    • Line two cookie sheets with parchment paper.
    • In a large bowl using an electric mixer, combine the butter and sugar and mix until light and fluffy, about two minutes.
    • Add the egg and vanilla extract and mix until well combined.
    • Beat in the oat flour, baking powder, and salt. Mix well, until the dough looks thick and uniform. Cover the bowl with a piece of plastic wrap and place in in the fridge to chill for at least 10 to 15 minutes.
    • When ready to roll out cookies, preheat the oven to 350°F. Take the cookie dough out of the fridge and let the dough rest a few minutes at room temperature to soften. Then line a work surface with a large piece of parchment paper. Place the cookie dough in the center and sprinkle with oat flour. Flour a rolling pin and roll out the dough into a ¼-inch thick sheet. Use cookie cutters to cut the dough into shapes and place them on the cookie sheet. Decorate with sprinkles if you wish!
    • Place in the oven and bake for about 8-10 minutes depending on how crisp you wish the cookies to be. I found 9 minutes to be perfect.
    • Remove cookies from oven and cool on baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
    • Cookies will keep in an air-tight container at room temperature for 5 days.

    Notes

    • Rest the batter: Let batter rest and chill in the fridge for at least 15 minutes before baking, or longer if you can. Oat flour, like all gluten-free flours, benefits from a rest to let it absorb liquids.
    • Use room temperature ingredients: Bring ingredients to room temperature before using. This is particularly important for the butter - if it's nice and soft, it will incorporate better into the batter, making for a smoother and more uniform cookie.
    • Use good quality ingredients: There are so few ingredients in these cookies that it's important to try to use decent-quality ingredients! Choose pure vanilla extract and good butter to make these oat flour sugar cookies truly stand out.
    • Make ahead: You can prepare the dough and hold it in the fridge for up to 5 days, or freeze the dough for up to 3 months. Defrost it in the fridge before rolling out.
    • Don't worry if the dough is crumbly. When you're combining the dough, it may seem a bit dry and crumbly. Don't worry! Keep beating the ingredients until they come together. If needed, you can use your hands to squeeze and knead the dough together a few times.
    • Make them dairy-free: You can easily make these oat flour cookies dairy-free. Swap a non-dairy butter or slightly softened coconut oil for the butter.
    • Make them vegan: Substitute for the butter as detailed above, and either omit the egg or use a flax egg substitute.
    • Make them refined sugar-free: I love to use maple sugar when I make sugar cookies. The subtle, natural sweetness of the maple sugar take them over the top (and, make them refined sugar-free!).
    • Oat flour substitute: If you don't eat oats, you can use sorghum flour, or try an all-purpose 1:1 gluten-free baking flour.

    Nutrition

    Calories: 89kcalCarbohydrates: 10gProtein: 2gFat: 5gSaturated Fat: 2gPolyunsaturated Fat: 0.1gMonounsaturated Fat: 1gTrans Fat: 0.2gCholesterol: 10mgSodium: 34mgPotassium: 54mgFiber: 1gSugar: 0.02gVitamin A: 118IUCalcium: 14mgIron: 1mg
    Disclaimer: Nutrition information is automatically calculated and is an estimate (I'm not a nutritionist and can't guarantee accuracy!). Even when not specified, be sure to check that all the ingredients you use are gluten free if you need them to be by reading labels on all packaging and/or confirming with the manufacturer.
    Did you make this recipe?Let me know in the comments how it went!

    More Gluten Free Cookies & Bars

    • Cups of milk and plates of chocolate chip and walnut cookies.
      Chocolate Chip and Walnut Oatmeal Cookies
    • A small plate of oatmeal walnut cookies.
      Gluten Free Oatmeal Walnut Cookies
    • Plates of oat flour shortbread along with cups of tea.
      Oat Flour Shortbread
    • A plate of maple shortbread and a cup of coffee.
      Maple Shortbread

    Comments

    1. Ever says

      March 16, 2025 at 7:59 am

      Hi, this recipe looks great. Hace you ever did this with artificial sweetener linea allulose o erythritol?
      Thanks in advance

      Reply
      • Nicole Spiridakis says

        March 16, 2025 at 9:44 am

        Hi Ever, I have not tried this with artificial sweeteners. If you do want to try a substitute, look at the package and follow their directions for how to properly swap it for the sugar.

        Reply
    2. Mila says

      January 11, 2025 at 1:54 pm

      5 stars
      I tried this recipe and it’s amazing! 10/10 They are so delicious! I also used a little bit of tapioca starch with the oat flour and it worked amazing.

      Reply
      • Nicole Spiridakis says

        January 12, 2025 at 10:00 am

        Yay! Thanks so much for letting me know and I'm so glad you loved them!

        Reply
    3. Sacha Kenion says

      April 03, 2024 at 12:29 pm

      5 stars
      Soft yummy cookies! Cooked 9 minutes as suggested ❤️

      Reply
    4. Helen Spiridakis says

      December 15, 2023 at 10:50 pm

      Such detailed instructions one can’t go wrong. The photos sell the product. Very thorough and lots of good tips for making these perfect.

      Reply
    4.87 from 15 votes (13 ratings without comment)

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    Welcome!

    Cucina Nicolina is your home for easy gluten free baking recipes made with simple, wholesome ingredients. I'm a writer, recipe developer, and cookbook author who loves to share all things yummy and gluten free. Learn more about me.

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