One bite of this incredibly moist, fluffy, and absurdly delish gluten-free carrot cake made with oatmeal flour and you will throw out all other recipes! If the richly spiced, old fashioned flavor and moist crumb isn’t enough to convince you, then the nutty browned butter cream cheese frosting will definitely seal the deal. Tasting is believing!

Slice of Oat Flour Carrot Cake sitting on a glass plate.
This is the gluten-free carrot cake to make when you don’t want to buy any speciality ingredients. Grind GF oats into oat flour and you are ready to go!

Want to Save This Recipe?

Enter your email below & we'll send it straight to your inbox. Plus you’ll get affordable and easy gluten-free recipes delivered each week!

Simple Oat Flour Carrot Cake – Gluten-Free Recipe You Need!

Miss the taste of a moist vintage carrot cake? Then here’s a recipe to save, print, make, and repeat often. One bite of this fluffy treat and you will understand why this has quickly become a favorite in my all-star gluten-free cakescollection. Then you will be equally floored it’s made with oat flour. 🤯

If you’re a little thrown by with baking with oat flour, let me break it down. Oatmeal. We’re all familiar with that, right? I bet you even have some oats right in your pantry. Just like this magical 5-minute homemade oatmeal bread, this carrot cake starts and ends with a quick whiz in the blender.

Now we’re talking. An oat flour carrot cake recipe all made in a blender?! Yep, it’s as easy as that. But no sweat if you don’t have something on hand to pulverize those oats into flour. Also included is an easy how-to for making the cake without a blender.

Once you have the oats blended into flour, just mix in all that classic carrot cake goodness – hand-grated carrots, warm inviting spices, the perfect leavening and moisture for a fluffy, yet moist crumb. Then, smother on a gooey, thick layer of browned butter cream cheese frosting on top. If cream cheese isn’t your jam, then try the world’s fluffiest buttercream, vanilla glaze, or let the cake do all the talking and simply dust with powdered sugar.

Once you fall in love with this recipe (guaranteed, you will!), I have another goodie – uber fluffy chocolate oat cake. So, so good!

Let’s Make This Together!

(Below shows step-by-step photos and modified instructions. For the complete recipe, along with ingredient amounts, scroll down to the recipe card.)

Blend up the oat flour.

If you have a high-speed blender, like a Vitamix, first dump the oatmeal in and process into a fine, powder. You also have the option to make with ready-made oatmeal flour and mix the batter by hand. Those instructions are in the recipe card below. 👇

Oats being blended in a blender.l

Dump and mix other yummy carrot cake stuff.

Now you get to see why this recipe is so miraculous. Just add in the remaining cake ingredients and blend. Start with the remaining dry ingredients and combine. Add in the applesauce for added moisture, eggs, milk (dairy-free is fine), vanilla, and a little oil to further soften the crumb.

Once that’s nice and smooth, dump in the grated carrots, raisins, and optional nuts. I just pulse a couple times to mix in or you can stir it in the blender with a wooden spoon.

Ingredients combined with oat flour and blended in blender.

Time to bake.

If you’d like to lift the cake out of the pan to transfer to a platter, line your baking dish with parchment to lift out. Otherwise, pour the batter into a greased 8X8-inch baking pan or check out the alternative cake pan options.

Bake for 30-35 minutes, or until a toothpick comes out clean and the top slightly cracks. Cool completely before swirling on frosting.

Batter baked in a baking pan.

Browned butter cream cheese frosting?! Yep, it’s as good as it sounds.

When making browned butter, it’s best to start with room temp, slightly softened butter. After it melts, stir occasionally so it doesn’t burn. It will foam, then the milk solids will start to settle at the bottom. Once the milk solids go from white to brown, it’s ready. Immediately transfer it to a mixing bowl to cool.

Add in the softened cream cheese, powdered sugar, and cream. Beat into fluffy clouds of sweetness. Try not to eat it all before it gets on the cake. Seriously.

Cream cheese frosting ingredients in a skillet.
Knife spreading frosting on top of the cake.
Did you know carrots cakes are best friends with cream cheese frosting? This one made with browned butter is just about as good as it gets.

Why Hand-Grated Carrots Work Best For Cake

Okay, I’ve been touting how easy it is to make carrot cake with oat flour, but I guess I left out one teeny asterisk…You have to grate the carrots by hand.

Why? Those pre-grated carrots from the store are dry and devoid of the moisture you will need. Your other option would be to use the grater disc on a food processor. My hesitation with this is it possibly creating too much moisture, throwing off the balance of the cake. If you try it this way, will you do me a solid and leave me a comment below?

Layer Cake and Alternative Baking Pan Options

I really contemplated if I should make this a layer or single layer recipe. I anguished over it. Eventually single layer won out because I wanted the recipe to be easy and approachable.

However, there would be zero issue turning this into a layer cake. Just double the recipe and divide the batter between two greased 9-inch cake pans. The baking time would stay the same. You would also need to double the frosting ingredients.

If you’d like a single round layer, pour the batter into a 9-inch round pan. A 9X9 or 11X7-inch pan also works, but the cake will be slightly thinner and the baking time would decrease by about 5 minutes.

Carrot cake topped with frosting sitting on a wire grate.
Want to amaze guests? Wait for them to fall in love with this cake, then tell them it’s made with oat flour only and in a blender!

Save this recipe to your pinterest board!

Let’s be friends on Pinterest! I’m always sharing great recipes!

Did you make this recipe? I love hearing from you! Leave a star rating and comment below the recipe card. It helps others when searching for recipes and I appreciate feedback from our community. You will always hear back from me! -Melissa

Slice of Oat Flour Carrot Cake sitting on a glass plate.
5 stars (5 ratings)

Impossibly Moist, Fluffy Carrot Cake with Oat Flour

One bite of this incredibly moist, fluffy, and absurdly delish gluten-free carrot cake made with oatmeal flour and you will throw out all other recipes! If the richly spiced, old fashioned flavor and moist crumb isn't enough to convince you, then the nutty browned butter cream cheese frosting will definitely seal the deal. Tasting is believing!

Ingredients
 

Browned Butter Cream Cheese

Instructions
 

  • Preheat the oven to 350ºF. Grease 8X8 inch pan or 9-inch round cake pan with nonstick cooking spray. Line with parchment and overhang, if lifting out. Set aside.
  • Hand grate and measure carrots so they can be added to the mixture when ready. If the batter sits while the carrots are grated it could absorb too much moisture and become dry.
    1 cups grated carrots
  • Blender Method – Place the rolled oats in a powerful high speed blender, such as a Vitamix. Process into a fine, powdery flour, about 30-60 seconds. Add the remaining dry ingredients – granulated sugar, brown sugar, cornstarch, baking powder, baking soda, spices, and salt. Pulse to combine. Hand Mixer Method – Add the oat flour and remaining dry ingredients to a large bowl. Mix together on low speed.
    2 cups gluten-free certified rolled oats, ½ cup granulated sugar, ¼ cup packed light brown sugar, 3 tablespoons cornstarch, 1½ teaspoons baking powder, ½ teaspoon baking soda, 1 teaspoon ground cinnamon, ¼ teaspoon ground cloves, ¼ teaspoon ground ginger, ¼ teaspoon ground nutmeg, ¼ teaspoon salt
  • Blender Method – Add the wet ingredients – eggs, milk, applesauce, oil, and vanilla. Process again to combine, scraping down blender if necessary. The batter will be very thin. Hand Mixer Method – Whisk together the wet ingredients in a separate medium bowl. Add to the dry ingredients and stir to combine.
    2 large eggs, ½ cup milk, ½ cup unsweetened applesauce , ¼ cup oil, 2 teaspoon vanilla extract
  • Add in the pecans, raisins, and grated carrots. Pulse briefly to combine in the blender, or mix on low speed with hand mixer.
    ½ cup chopped pecans , ½ cup raisins
  • Pour the batter into the prepared baking pan. Bake for 30-35 minutes, or until a toothpick comes out clean and the top slightly cracks. Cool in pan for 5 minutes before lifting out onto a wire rack to cool completely. If frosting in the pan, you do not have to take the cake out. Just cool in the pan.

Cream Cheese Frosting

  • In a small skillet, brown the butter over medium heat. First the butter will melt fully. Then watch carefully and stir occasionally so it doesn't burn. It will foam, then the milk solids will start to settle at the bottom. Watch for the milk solids to turn from white to brown. Once that happens, immediately remove from heat. Transfer to a large mixing bowl and cool to room temperature.
    ¼ cup butter
  • Add the softened cream cheese, powdered sugar, heavy cream, vanilla, and salt. Beat together until smooth without lumps over low to medium speed. Increase the speed to high and beat until fluffy, about 2 minutes.
    4 ounces cream cheese , 2 cups powdered sugar, 1 teaspoon vanilla, 2 tablespoons heavy cream, ⅛ teaspoon salt
  • Spread on cooled cake. Refrigerate leftovers.
Calories: 621kcal, Carbohydrates: 94g, Protein: 11g, Fat: 24g, Saturated Fat: 7g, Polyunsaturated Fat: 5g, Monounsaturated Fat: 10g, Trans Fat: 0.2g, Cholesterol: 62mg, Sodium: 282mg, Potassium: 488mg, Fiber: 7g, Sugar: 48g, Vitamin A: 2735IU, Vitamin C: 2mg, Calcium: 121mg, Iron: 3mg
Did you make this recipe?Please leave a star rating and review below. It helps others when searching for recipes and I LOVE feedback!