The Best Ever Flourless Fudge Chocolate Cake (Sugar-Free, Keto-Friendly & Grain-Free!)
If you’ve been searching for the ultimate healthy chocolate cake that actually tastes indulgent—you just found it. 🎉 This Flourless Fudge Chocolate Cake has become a family tradition in our home. I make it for every single birthday (yep, even the pickiest eaters request it every year!). Keep reading to see how to make this Flourless Fudge Chocolate Cake Recipe – Sugar-Free, Keto-Friendly & Grain-Free!
In case you are in a hurry…
Here’s why this recipe is a total win:
- ✅ Flourless and grain-free
- ✅ Sugar-free and keto-friendly
- ✅ Made with real food ingredients
- ✅ Sweetened naturally
- ✅ Fudge-like texture that feels like a true treat
What Makes This Cake Special?
The secret ingredient is one you might not expect—sweet potato! It gives this cake the rich, moist, fudgy texture that feels just like a traditional flour-heavy cake. But don’t worry, you won’t taste the sweet potato at all. It simply creates a smooth base that pairs perfectly with the rich cocoa flavor.
And the frosting? It’s sugar-free, silky, and decadent—everything you’d expect from a bakery-style chocolate frosting, but without the guilt.
This cake tastes better AFTER it’s been refrigerated so you can bake it the day before a big event and serve it the next day.
I use two 9-inch circle cake pans for this recipe. These cake pans have become a staple in our baking cabinet and product the best baked goodies!
🍫 Ingredients for the Cake:
- 1 cup cooked and pureed sweet potato (no skins)
- 6 large eggs
- 1 cup organic 100% pure maple syrup (I use this brand)
- 1 cup of melted butter
- 2 tablespoons of vanilla extract
- 1 cup cocoa powder
- 1.5 teaspoons of pure monk fruit sweetener
- 1/4 cup of coconut flour
- 2 tablespoons of psyllium husk powder
- 1 tsp baking soda
- 1 tsp salt
🍫 Sugar-Free Chocolate Frosting:
- 1 cup butter, softened
- 2/3 cup unsweetened cocoa powder
- 3 tbsp milk of choice
- 1/2 cup of honey (add more if you’d like, depending on your sweet tooth)
📝 Instructions:
- Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans (I prefer these cake pans).
- In a large bowl or stand mixer with a whip attachment, mix together the wet ingredients.
- Stir in the dry ingredients until smooth.
- Use a spatula to scrape the sides and bottom to make sure everything is combined.
- Pour the batter into your prepared pans and gently tap the pans on the counter to spread the batter evenly.
- Bake for 20-23 minutes, or until the center is set and a toothpick comes out clean. The cake will resemble a sponge-like texture when you touch it.
- Let the cake cool completely before frosting.
- In a small bowl or stand mixer, mix all the frosting ingredients with a whisk (or whip attachment) until smooth and fluffy. Add a little extra milk if needed to reach your desired consistency.
- Once the cake is cool, generously frost the layers.
- Place in the refrigerator for at least 2 hours – overnight to get the fudge consistency. Slice and serve!
🎉 Why You’ll Love This Cake
Not only is this cake perfect for anyone following a keto, grain-free, or sugar-free lifestyle, but it’s also a hit with kids and adults who don’t even care about the healthy ingredients. It’s rich, decadent, and satisfying without that “health food” vibe.
I’ve made this for every family birthday for years, and it never fails to impress. It’s simple, wholesome, and absolutely delicious.
🛒 Bonus Tip:
Double the recipe to make a four-layer cake for extra special occasions, or freeze slices for a quick sweet tooth fix anytime.
If you try this recipe, let me know in the comments below or tag me on Instagram @SimpleMadePretty—I’d love to see your creations!

Flourless Fudge Chocolate Cake Recipe - Sugar-Free, Keto-Friendly & Grain-Free
Supplies
- 1 cup cooked and pureed sweet potato (no skins)6 large eggs
- 1 cup organic 100% pure maple syrup (I use this brand)
- 1 cup of melted butter
- 2 tablespoons of vanilla extract
- 1 cup cocoa powder
- 1.5 teaspoons of pure monk fruit sweetener
- 1/4 cup of coconut flour
- 2 tablespoons of psyllium husk powder
- 1 tsp baking soda
- 1 tsp salt
- 1 cup butter, softened (for frosting)
- 2/3 cup unsweetened cocoa powder (for frosting)
- 3 tbsp milk of choice (for frosting)
- 1/2 cup of honey (add more if you'd like, depending on your sweet tooth - for frosting)
Instructions
- Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans (I prefer these cake pans).
- n a large bowl or stand mixer with a whip attachment, mix together the wet ingredients.
- Stir in the dry ingredients until smooth.
- Use a spatula to scrape the sides and bottom to make sure everything is combined.
- Pour the batter into your prepared pans and gently tap the pans on the counter to spread the batter evenly.
- Bake for 20-23 minutes, or until the center is set and a toothpick comes out clean. The cake will resemble a sponge-like texture when you touch it.
- Let the cake cool completely before frosting.
- In a small bowl or stand mixer, mix all the frosting ingredients with a whisk (or whip attachment) until smooth and fluffy.
- Add a little extra milk if needed to reach your desired consistency.Once the cake is cool, generously frost the layers.
- Place in the refrigerator for at least 2 hours - overnight to get the fudge consistency. Slice and serve!
Notes
Don’t forget…
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The Best Ever Flourless Fudge Chocolate Cake (Sugar-Free, Keto-Friendly & Grain-Free!)










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