This gluten-free oatmeal cookie recipe is easy to make. Simply mix all the ingredients together in one bowl, drop the dough onto a baking sheet, and bake. The cookies turn out thick, chewy, and flavorful.
Are you looking for more gluten-free cookie recipes? Try this buttery gluten-free shortbread recipe or make a batch of classic gluten-free chocolate chip cookies.
Gluten-Free Oatmeal Cookies: Ingredients and Substitutions.
- Gluten-Free Oats. My favorite oats to use in this recipe are old-fashioned oats. They’re nicely oat-y and have a great, chewy texture. Quick cook and instant oats work but the flavor isn’t as strong. Cookies made with quick oats are cakey instead of chewy. If you love cakey oatmeal cookies, use instant oats or a blend of the two.
Ingredient Note: Be sure to use gluten-free oats. Oats are naturally gluten-free. However, during growing, handling, and processing, they can be contaminated with gluten. This is why it’s important to use oats labeled gluten-free by the manufacturer.
- Gluten-Free Flour. For the best texture, use a blend that contains xanthan gum. It helps the cookies hold their shape.
- Cinnamon. I love the flavor cinnamon brings to oatmeal cookies. If you don’t like it, simply leave it out. If you love cinnamon, double the amount called for in the recipe.
- Baking Soda. A little baking soda helps the cookies to rise.
- Salt. Use fine (table) salt. It blends easily into the dough.
- Butter. Melted regular or dairy-free butter adds richness.
- Brown Sugar. The sweetness comes from brown sugar. If you like molasses flavor, use dark brown sugar. For a lighter, more caramel-like flavor, use light brown sugar. No brown sugar in the kitchen? No problem! Use an equal amount of granulated sugar.
- Egg. A large egg helps to hold the dough together. If you want to make these cookies egg-free, the best egg replacer for this recipe is a flax egg. I’ve included the recipe below.
- Vanilla Extract. A splash of vanilla extract adds a nice flavor.
- Chocolate Chips or Raisins. These cookies don’t need chocolate chips or raisins. But they sure are a lovely addition! Add your favorite. I love the combination of both chocolate chips and raisins.
Variation: Egg-Free and Dairy-Free Oatmeal Cookies.
This recipe can easily be adapted for egg-free and dairy-free needs.
Egg-Free. Replace the one egg with one tablespoon of ground flaxseeds (flax meal) and two and half tablespoons of hot water. Mix the two together and let sit for about five minutes. Add to the dough in place of the egg. Gluten-free oatmeal cookies made without an egg are very similar to those made with an egg.
Dairy-free. Replace the melted butter with dairy-free butter and use dairy-free chocolate chips. Follow the recipe as written.
How to Make Gluten-Free Oatmeal Cookies. Step by Step.
Step One: Heat the oven and prep your pan.
Cookies bake best in a hot oven. I like to preheat my oven before I begin measuring ingredients. If you forget to turn on your oven before you make your dough, simply heat it before baking your first pan of cookies.
Step Two: Grab a bowl and make the dough.
This dough comes together in one mixing bowl. First, stir together the melted butter and brown sugar. Then add the egg and vanilla extract. This is my favorite step. The mixture gets nice and thick. It almost looks like caramel sauce.
Add the gluten-free flour, cinnamon, baking soda, and salt. Stir everything together using a sturdy wooden spoon or electric mixer. It’s up to you. At this point, the dough should feel smooth and thick. Remember to get down to the bottom of the bowl. Sometimes flour likes to hang out there. You want to mix everything into the dough.
Once the dough is thick, stir in the oats and chocolate chips or raisins. At first, it might seem like there are too many oats for the dough. There aren’t; I promise. Just stir for a few seconds until everything comes together.
Step Three: Scoop the dough.
Scoop the dough onto a parchment-lined baking sheet. I like to use a cookie scoop for this step. The scoop makes cookies all the same size. When cookies are the same size, the entire pan bakes evenly. No more small overbaked cookies or large underbaked cookies. If you don’t own a cookie scoop, use about two tablespoons of dough per cookie.
Step Four: Bake and cool.
A pan of these cookies takes about 12 minutes to bake. They’ll puff as they bake but they won’t spread much. Look for the edges to turn a light golden brown. That’s a good way to tell when they’re done.
After baking, let the cookies cool on the pan for a few minutes. They’re really delicate when they first come out of the oven. If you move them too soon, they can break. Let the cookies cool for two to three minutes before transferring them to a cooling rack.
How to Store and Freeze.
The cookies keep well for about four or five days on the counter. How long they remain fresh depends on the temperature and humidity of your kitchen. To keep them fresh, keep them covered.
To freeze, allow the cookies to cool. Place in a freezer container or bag and freeze for up to three months.
Gluten-Free Oatmeal Cookies
- ½ cup butter, melted and cooled slightly (4 ounces; 113 grams)
- ¾ cups firmly packed brown sugar see note (6 ounces; 170 grams)
- 1 large egg (about 2 ounces; 57 grams, out of shell)
- 1 teaspoon vanilla extract
- 1 cup gluten-free flour, see note (5 ¼ ounces; 150 grams)
- 1 teaspoon ground cinnamon
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 ½ cups gluten-free old-fashioned oats (uncooked ) (5 ¼ ounces; 148 grams)
- 1 cup chocolate chips, optional (about 6 ounces; 170 grams)
- 1 cup raisins, optional (5 ¼ ounces; 148 grams)
Adjust oven rack to the middle position and heat the oven to 350°F. Line two baking sheets with parchment paper.
Stir together melted butter and brown sugar until smooth in a large bowl. Add the egg and vanilla extract. Mix until thick and smooth. The mixture will look like caramel sauce. Add the gluten-free flour, cinnamon, baking soda, and salt. Sir until you don't see any streaks of flour. Add the oats and chocolate chips and raisins, if using. Mix until combined.
Drop dough, about two tablespoons each, onto one of the prepared baking sheets. Space dough about one inch apart. These don’t spread much. Bake until the edges are light brown and the cookies are set, about 12 minutes.
Remove the pan from the oven and allow the cookies to cool on the pan for minutes. While they cool, bake the remaining dough on the second baking sheet. Transfer cooled cookies to a wire rack and allow to cool completely.
Keep the cookies covered on the counter for up to four days or freeze for up to three months.
To freeze cookies: place in a freezer container and separate layers with a piece of wax or parchment paper. Thaw overnight on the counter.
Gluten-Free Flour. This recipe was developed with Bob’s Red Mill’s 1:1 Gluten-free Baking flour. Using a different gluten-free flour might affect the texture of the cookies.
Sugar. Use light or dark brown sugar. Dark brown sugar gives the cookies a more pronounced molasses flavor.
Egg-free: Replace the egg with one (1) tablespoon of ground flax seeds (flax meal) and two and half (2 ½ tablespoons of hot water. Mix the ground flax seeds together with the hot water. Let sit for five minutes. Stir into the recipe along with the vanilla extact.
Dairy-Free: Replace the melted butter with a dairy-free butter. Use dairy-free chocolate chips or omit the chocoalte chips.
I subbed unrefined coconut sugar for brown sugar. To make up for the lack of molasses I let the butter get just barely nutty. I made smaller cookies using a small scoop & baked for 10 mins instead of 12..
Because I’m at 7000 ft baked goods will over-rise then deflate if adjustments aren’t made to recipes; usually the baking temperature has to be raised as well. But with so little baking soda I took a chance and left the recipe alone.I preheated my oven to 375 then turned it down to 350 just before putting in the cookies. The temporary extra initial heat slowed rising, but the cookies didn’t burn or dry out.
The resulting product was slightly crisp underneath yet chewy. Delightful. I stopped at two Small cookies, but these could be dangerous. I froze half to keep us honest. I’ll surely make this recipe again. Next time less chocolate but add pecans.
Tina Lewis says
Just made these they smell SO yummy ?
Just want to ask, can I substitute the butter for oil ?
Yes, you can use oil. The flavor and texture will be a little different but the recipe will work.
Instead of chocolate chips I added chopped walnuts, dried cranberries and chia seeds to make them a bit heartier to eat as a breakfast cookie and they turned out perfect. These were exactly what I was looking for. I’ll be keeping this recipe on hand for years to come.
Did you need to use xanthan gum with the Bob’s flour?
Nope! No need to use additional xanthan gum.
I make my own gluten-free flour using 1/4 cup brown rice flour, 1/4 cup sorghum flour, 1/4 cup amaranth flour, and 1/4 cup tapioca starch. Works perfectly every time with more nutritional value than pre-made gluten-free flour, and because I buy the flours bulk it’s also much less expensive.
I used oatmeal flower that I just ground down myself in my Vitamin imstead of flower and replaced brown sugar with brown coconut sugar. Rhe cookies turned our so delicious!!!
I doubled the recipe and it is a success in my household. Thank you!!!
Just made these cookies, of all the g.f. oatmeal cookies recipes out there. This is the best!!
Followed the recipe to the letter, but was surprised at how much they spread.
They also had an odd aftertaste – not sure if I’m simply not a fan of cinnamon in oatmeal cookies or if it was the flour.
Probably won’t be making these again, unfortunately.
Oh, that’s too bad!
They really should stay thick. So the fact that they spread and had an odd aftertaste makes me curious about your oats. What type did you use?
My guess is that it isn’t the cinnamon because cinnamon would just taste like cinnamon, not “odd.”
Brenda Wright says
I have made these several times and love them! This time they spread horribly. I followed recipe just like I always do, but huge fail… Do you have any idea why this could have happened. Used BRM flour and weighed all items. I’ll still eat them, but bummed they spread. Thanks!
Ms. Martha G. says
First attempt and these turned out beautifully! Robin Hood AP GF Flour, Robin Hood Large Oats (I had a lapse in judgement at the grocery store and forgot regular flour or GF oats, but these are not being made for a GF crowd). The other thing I LOVE about this recipe is it is “small batch” – 24 cookies is the perfect amount. Mixes up nicely in a single bowl, two cookie sheets and done!
Marianne Maticic says
This recipe made the BEST cookies! I used gfJules All Purpose Flour & they came out perfect!! They disappeared in no time at all thanks to my grandsons ?
Here’s another winner ? My dough was a little ‘wetter’ looking than yours but I suspect that it was due to the different GF flour ( I’m in the U.K ! ). Therefore they did spread a bit but are still delicious. I’ve put the dough in the fridge to see if that helps. Yummy. Thank you.
Laina Sweetney says
A late night craving brought me to this recipe and I’m so glad I found it! Did I make these cookies at 12:30 in the morning? Yes. Did I eat way more than I should’ve? Maybe. Will I keep this bookmarked for future? Absolutely! The cookies were perfect! My brother (who most of the time hates anything gluten free) couldn’t stop raving over how good these were.
Dennis Ridden says
I was about to try this recipe I see someone say about the aftertaste could it be the baking soda it does not do for me there for I use small amounts of corn flour as a substitute, yes?