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    Home » Recipes » Cakes and Cupcakes

    Chocolate Oat Flour Cake

    Published: Oct 11, 2022 · Modified: Nov 2, 2022 by Crystal Yentzen · This post may contain affiliate links · 17 Comments

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    Chocolate Oat Flour Cake

    This is the best chocolate oat flour cake recipe you will find! Moist, rich, and decadent- you won't believe it's healthy. Plus, it's so easy to make with simple ingredients. If you love chocolate, try this cake!

    A slice of chocolate oat flour cake on a white plate

    This is seriously the best oat flour chocolate cake ever! I say that for three reasons.

    1. It's delicious! Moist chocolate cake with a texture very similar to a traditional cake is topped with a decadent and creamy ganache. Everyone loves this cake!
    2. It's healthy! It's refined sugar-free. We use oat flour instead of refined white flour and olive oil instead of butter. Plus, dark chocolate is an excellent source of antioxidants.
    3. It's easy to make! Anyone can make this cake. You don't need any fancy equipment and everything is mixed by hand. The ingredients are simple and easy to find. So what do you need?

    Jump to:
    • Ingredients
    • Instructions
    • FAQs
    • Want more chocolate dessert recipes?
    • 📖 Recipe
    • 💬 Comments

    Ingredients

    Cake Ingredients

    All of the ingredients to make a chocolate oat flour cake

    To make the chocolate oat flour cake, you will need the following ingredients:

    • Oat Flour- Oat flour is sold in stores, but it's also super easy to make at home. Simply blend old-fashioned oats in a high-speed blender until the oats become a fine powder (about 30 seconds to a minute). Store your oat flour in an air-tight container for up to three months. 
    • Coconut Sugar- Feel free to substitute regular granulated sugar or brown sugar.
    • Cocoa Powder- Be sure to use natural, unsweetened cocoa powder.
    • Cornstarch- Cornstarch helps to bind the cake and gives it a fluffier texture.
    • Baking Powder and Baking soda- You'll need baking powder and baking soda to help the cake rise.
    • Salt- Any fine-grain salt will do.
    • Eggs- You'll need two large eggs, and I recommend pasture-raised ones. They are the healthiest eggs you can buy and are kinder to the animals.
    • Olive Oil- I love using olive oil for its health benefits, but feel free to substitute canola or vegetable oil.
    • Greek Yogurt- I replace some of the fat with Greek Yogurt. Buy the unsweetened variety.
    • Maple Syrup- You can substitute honey or agave syrup instead of maple syrup.
    • Vanilla Extract- Pure vanilla extract is best, but imitation works too.
    • Water- You'll need to add boiling water to the batter after it's mixed.

    Chocolate Ganache Ingredients

    the ingredients to make chocolate ganache
    • Dark Chocolate Chips- I use dark chocolate chips, but you can go with milk chocolate if that's what you like.
    • Greek Yogurt- Use an unsweetened thick Greek yogurt.
    • Milk of Choice- You can use regular dairy or plant-based milk such as almond milk.
    • Maple Syrup- Fell free to substitute honey or agave syrup.

    Instructions

    As I said, it's so to make this oat flour cake! Follow these instructions.

    chocolate cake batter
    chocolate oat flour cake batter in a cake pan
    chocolate oat flour cake in a cake pan
    chocolate ganache in a white bowl
    • In a large bowl, sift together the oat flour, coconut sugar, cocoa powder, cornstarch, baking powder, baking soda, and salt. Whisk together the eggs, olive oil, yogurt, maple syrup, and vanilla extract in a medium-sized bowl. Set aside.
    • Bring ½ cup of water to a boil either in the microwave or on the stovetop. Set aside.
    • Add the wet ingredients to the dry ingredients and whisk together until well incorporated. Add in the hot water and whisk until smooth.
    • Pour the batter into the prepared cake pan. Bake for 29-34 minutes or until a toothpick comes out clean or with a few moist crumbs. Allow the cake to cool for 10 minutes in the pan before transferring it to a wire rack to cool completely.
    • When the cake is cool, move on to prepare the chocolate ganache.
    • In a medium-sized bowl, whisk together the yogurt, milk of choice, and maple syrup. Set aside.
    • Melt the chocolate chips using a microwave or a double boiler if you prefer. For the microwave, place the chocolate chips in a microwave-safe bowl. Place the bowl in the microwave and heat for 30 seconds. Stir the chocolate and return it to the microwave. Heat again for 20-second intervals, stirring in between until completely melted.
    • Whisk the melted chocolate into the yogurt mixture until smooth. Refrigerate for 15 minutes only to allow the ganache to firm up slightly. If you refrigerate it for longer, it will thicken up too much, and you will have to let it sit at room temperature for a bit.
    • Frost the top of your cake with the ganache and garnish with fresh berries and mint if desired. The ganache will continue to firm up as it sits. I left the sides bare as I like the "naked" look, and it's healthier this way. If you want to frost the sides of your cake, I suggest doubling the ganache recipe.
    chocolate ganache on top of a cake garnished with berries and mint

    FAQs

    Do I need to use parchment paper?

    Parchment paper rounds guarantee your cake won't stick. I suggest that you grease your cake pan and line it with parchment paper. Then grease the parchment paper.

    What type of cake pan is best for baking cakes?

    Aluminum cake pans work best for baking cakes. Aluminum heats up quickly and evenly, ensuring that your cakes come out perfectly every time.

    Can I make a layer cake with this recipe?

    Yes, you can! Simply double the recipe for the cake and split the batter between two 9-inch cake pans. If you want the cake sides naked, then double the ganache recipe. If you want to frost the sides, then I suggest that you triple the ganache recipe.

    up close shot a chocolate oat flour cake

    Want more chocolate dessert recipes?

    Check these out!

    Quinoa Chocolate Cupcakes with Peanut Butter Glaze

    Double Chocolate Protein Mug Cake (made with oats)

    Chocolate Protein Mousse with Collagen

    Please let me know how you like the chocolate oat flour cake in the comments. Your feedback means a lot to me, and your star ratings encourage other readers to give this recipe a try. 🙂

    Enjoy!

    Crystal

    📖 Recipe

    Chocolate Oat Flour Cake with chocolate ganache
    Print Recipe
    4.80 from 25 votes

    Chocolate Oat Flour Cake

    This is the best chocolate oat flour cake recipe you will find! Moist, rich, and decadent- you won't believe it's healthy. Plus, it's so easy to make with simple ingredients. If you love chocolate, try this cake!
    Prep Time30 mins
    Cook Time30 mins
    cool time1 hr
    Total Time2 hrs
    Course: Dessert
    Cuisine: American
    Keyword: chocolate, healthy, Oat flour
    Servings: 10
    Calories: 341kcal
    Author: Crystal Yentzen

    Ingredients

    For the Cake

    • 1 and ⅔ cup oat flour*
    • ½ cup coconut sugar or regular brown sugar
    • ⅓ cup cocoa powder natural, unsweetened
    • ¼ cup cornstarch
    • 1 and ½ teaspoons baking powder
    • ½ teaspoon baking soda
    • ½ teaspoon salt
    • 2 large eggs pasture raised is best
    • ⅓ cup olive oil canola or vegetable oil works too
    • ½ cup Greek yogurt unsweetened
    • ½ cup maple syrup you can sub agave syrup or honey
    • ½ tablespoon vanilla extract
    • ½ cup boiling water

    For the Chocolate Ganache

    • 5 oz (¾ cup plus 1 tablespoon) dark chocolate chips or chocolate chips of choice
    • 3 tablespoons Greek yogurt
    • 1 and ½ tablespoons milk of choice
    • 1 tablespoon maple syrup you can sub honey or agave syrup

    Instructions

    Prepare the cake

    • Preheat the oven to 335°F. Grease and line a 9-inch cake pan with parchment paper.
    • In a large bowl, sift together the oat flour, coconut sugar, cocoa powder, cornstarch, baking powder, baking soda, and salt. *I recommend sifting for the best texture, but you can whisk the ingredients if you don't have a sifter.
    • In a medium-size bowl, whisk together the eggs, olive oil, yogurt, maple syrup, and vanilla extract. Set aside.
    • Bring ½ cup of water to a boil in the microwave or the stovetop. Set aside.
    • Add the wet ingredients to the dry ingredients and whisk together until well incorporated. Add in the hot water and whisk until smooth.
    • Pour the batter into the prepared cake pan. Bake for 29-34 minutes or until a toothpick inserted into the center comes out clean or with a few moist crumbs. Allow the cake to cool for 10 minutes in the pan before transferring it to a wire rack to cool completely.

    Prepare the ganache.

    • When the cake is cool, move on to prepare the chocolate ganache.
    • In a medium-size bowl, whisk together the yogurt, milk of choice, and maple syrup. Set aside.
    • Melt the chocolate chips using a microwave or a double boiler if you prefer. For the microwave, place the chocolate chips in a microwave-safe bowl. Place the bowl in the microwave and heat for 30 seconds. Stir the chocolate and return it to the microwave. Heat again for 20-second intervals, stirring in between until completely melted.
    • Whisk the melted chocolate into the yogurt mixture until smooth. Refrigerate for 15 minutes only to allow the ganache to firm up slightly. If you refrigerate it for longer, it will thicken up too much, and you will have to let it sit at room temperature for a bit.
    • Frost the top of your cake with the ganache and garnish with fresh berries and mint if desired. The ganache will continue to firm up as it sits. I left the sides bare as I like the "naked" look, and it's healthier. If you want to frost the sides of your cake, I suggest doubling the ganache recipe.
    • Enjoy!

    Notes

    • Oat Flour- Oat flour is sold in stores, but it's also super easy to make at home. Simply blend old-fashioned oats in a high-speed blender until the oats become a fine powder (about 30 seconds to a minute). Store your oat flour in an air-tight container for up to three months. 
    • Store your leftover cake covered at room temperature for two days or in the refrigerator for up to five days.

    Nutrition

    Calories: 341kcal | Carbohydrates: 46g | Protein: 7g | Fat: 15g | Saturated Fat: 6g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Trans Fat: 0.01g | Cholesterol: 38mg | Sodium: 231mg | Potassium: 344mg | Fiber: 3g | Sugar: 22g | Vitamin A: 56IU | Vitamin C: 0.1mg | Calcium: 128mg | Iron: 2mg

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    Reader Interactions

    Comments

    1. Audrey says

      October 15, 2022 at 1:04 pm

      5 stars
      Loved that this had directions to make my own oat flour included

      Reply
      • Omane says

        March 13, 2023 at 12:06 pm

        Thats the plan. To make it for my birthday. I love that’s it’s healthy. Thank you

        Reply
        • Crystal Yentzen says

          March 13, 2023 at 5:57 pm

          You are welcome! Please let me know how it turns out.

          Crystal

          Reply
    2. Bethany says

      October 15, 2022 at 2:02 pm

      5 stars
      This looks like an amazing chocolatey chocolate cake. Can't wait to try it. Putting it on the list for my bday!

      Reply
    3. Giangi Townsend says

      October 15, 2022 at 2:06 pm

      5 stars
      You had me at chocolate! I love this cake! I love that your directions are clear and easy to follow. I love that it is just so soft and full of flavor. Thank you for sharing it

      Reply
      • Crystal Yentzen says

        October 16, 2022 at 4:00 pm

        You are welcome! I'm so happy you liked it!

        Reply
    4. Andrea says

      October 15, 2022 at 3:39 pm

      5 stars
      this oat flour cake turned out so delicious! the chocolatey-ness really hit the spot for me!!

      Reply
    5. Judith says

      October 15, 2022 at 6:43 pm

      5 stars
      A delicious cake. I loved the ganache!

      Reply
      • Crystal Yentzen says

        October 16, 2022 at 4:01 pm

        That's my favorite part!

        Reply
    6. Shelby says

      October 15, 2022 at 11:38 pm

      5 stars
      This oat cake came out so rich but not overpowering. Delicious!

      Reply
    7. nancy says

      October 16, 2022 at 12:56 am

      5 stars
      this chocolate oat flour cake was so moist and addicting. I am making it again next week for my friend's bday

      Reply
    8. Jess says

      October 16, 2022 at 1:39 am

      5 stars
      Easy to make and delish!

      Reply
    9. Sarah says

      October 17, 2022 at 10:35 am

      5 stars
      You had me at healthy chocolate cake 😀 Made this for afternoon tea, know one even noticed it was healthy, they were to busy eating it!

      Reply
    10. Greta says

      October 17, 2022 at 8:55 pm

      5 stars
      My everything is chocolate. So this was a hit for everybody. Thanks for the recipe.

      Reply
      • Crystal Yentzen says

        October 18, 2022 at 12:08 pm

        You're welcome! I'm so glad you enjoyed it!

        Reply
    11. Hanah says

      March 19, 2023 at 4:56 am

      5 stars
      Delicious and soo easy!! Thanks such a great recipe.

      Reply
      • Crystal Yentzen says

        March 19, 2023 at 3:57 pm

        You're welcome! I'm so happy you like the cake! Chocolate happens to be my favorite!

        Crystal

        Reply

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    Hi, I'm Crystal! Welcome to Dessert Done Light, where I share healthy dessert, snack, and breakfast recipes. If you're looking for a healthy treat, you're in the right place!

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