Keto Chocolate Cake Recipe: Moist, Rich, and Low-Carb Perfection

If you think indulgence and keto can’t coexist, think again. This keto chocolate cake recipe is everything you crave—decadent, fluffy, and full of chocolate flavor—with just 4g net carbs per slice. In this article, I’ll walk you through the story behind this crowd-pleasing dessert and how to make it flawlessly every time. You’ll also find variations like a low-carb Black Forest option and a dreamy frosting that brings it all together. Whether you’re celebrating or just need a sweet fix, this keto chocolate cake delivers guilt-free satisfaction with every bite.

Slice of keto chocolate cake with rich chocolate frosting

Table of Contents

The Story Behind My Keto Chocolate Cake Recipe

There’s something magical about a chocolate cake that makes you feel at home. Growing up in Naples, Italy, I was surrounded by rich desserts, but my mother’s cakes always had a rustic, intuitive flair. She believed you didn’t need fancy tools or sugar-laden shortcuts—just good hands, simple ingredients, and heart. Now in my New York kitchen, I follow her lead but with a twist: I make it keto. This keto chocolate cake recipe was born during a quiet moment when I missed her most. I wanted to bake something comforting that respected my low-carb lifestyle but didn’t sacrifice joy or flavor.

This cake has become a staple at my pop-ups and dinner parties. No one ever believes it’s sugar-free—its rich, tender crumb is everything you want from a chocolate cake. Using almond meal instead of flour gives it a wonderfully moist texture, and sour cream adds that classic tang that balances the cocoa perfectly. The best part? You can easily turn it into a stunning keto Black Forest cake for birthdays or holiday tables.

I’ve paired this with my luscious keto frosting that blends cream cheese, cocoa, and just the right amount of sweetness. If you’re new to low-carb baking, this is the cake that will win you over.

I also share it often alongside other crowd favorites like my chocolate peanut butter cups with macadamias or a scoop of high-protein chocolate ice cream when I’m serving dessert for friends. The combo? Unbeatable.

Whether you’re keto-curious or a seasoned low-carb baker, this keto chocolate cake deserves a spot in your rotation. It’s proof that you don’t need sugar to create something irresistible. Just your delicious hand—and a little love.

Ingredients That Keep It Low-Carb and Decadent

Why Each Ingredient Matters in a Keto Chocolate Cake

A successful keto chocolate cake isn’t just about removing sugar—it’s about building flavor and texture through smart swaps. Each ingredient in this recipe serves a purpose. Almond meal replaces traditional flour to keep the carbs low while adding a moist, nutty base. I choose light-tasting olive oil instead of butter to keep the flavor clean and let the cocoa shine. Eggs give the cake structure, while sour cream brings richness and tang.

Unsweetened cocoa provides a deep chocolate note without added sugar, and a keto-friendly sweetener like erythritol or allulose keeps things sweet without spiking blood sugar. Vanilla extract ties everything together, enhancing the cocoa’s natural bitterness with a warm, sweet aroma. Baking powder ensures a light rise, even without gluten.

If you’re curious about the nutrition side, each slice delivers only 4g net carbs, 8g protein, and 28g fat—making it not just a treat, but a filling, macro-balanced dessert. When I want to impress guests, I’ll go the extra mile and turn it into a Black Forest variation with whipped cream, cherries, and ganache. But even in its simplest form, this keto chocolate cake satisfies.

Craving more low-carb ideas? You’ll find this cake pairs beautifully with a dollop of homemade keto chocolate or even a scoop of protein ice cream on the side.

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Slice of keto chocolate cake with rich chocolate frosting

Keto Chocolate Cake


  • Author: Ivana
  • Total Time: 40 mins
  • Yield: 12 slices 1x

Description

A rich, moist, and low-carb keto chocolate cake recipe perfect for any occasion. With just 4g net carbs per slice, it’s guilt-free and indulgent.


Ingredients

Scale

90 g (3 oz) light tasting olive oil

3/4 cup sweetener (160g)

3 cups almond meal (360g)

½ cup unsweetened cocoa

6 large eggs

½ cup sour cream (120g)

3 teaspoons vanilla extract

3 teaspoons baking powder

FROSTING

1/4 cup powdered sweetener (40g)

3 tablespoons unsweetened cocoa (30g)

4 tablespoons butter, cubed

225 g cream cheese, softened

1/4 cup heavy cream

1 teaspoon vanilla extract

OPTIONAL BLACK FOREST TOPPING

100 g dark chocolate, chopped

2 ½ cups heavy cream

100 g fresh cherries, halved and pitted

Grated dark chocolate for garnish


Instructions

1. Preheat oven to 160℃ fan / 180°C static / 350°F. Line 2 x 8-inch springform pans.

2. Mix all ingredients in a stand mixer until combined. Divide mixture into pans.

3. Bake for 30 minutes until a toothpick comes out clean. Cool completely.

4. Beat frosting ingredients in stand mixer until light and fluffy.

5. Frost one cake layer, top with second, and frost again. Smooth the top.

6. Chill 1-2 hours before slicing.

7.

8. BLACK FOREST OPTION:

9. Heat half a cup of cream, pour over chocolate, let sit 3–5 min, then stir to make ganache.

10. Whip remaining cream to stiff peaks. Fold in 2–3 tbsp ganache.

11. Drizzle remaining ganache over cake, layer with whipped cream and cherries. Chill before serving.

Notes

Let cakes cool completely before frosting to maintain structure.

Use powdered sweetener for smooth frosting.

Substitute Greek yogurt if sour cream isn’t available.

  • Prep Time: 10 mins
  • Cook Time: 30 mins
  • Category: Dessert
  • Method: Baking
  • Cuisine: Keto, American

Nutrition

  • Serving Size: 1 slice
  • Calories: 292
  • Sugar: 1g
  • Sodium: 50mg
  • Fat: 28g
  • Saturated Fat: 6g
  • Unsaturated Fat: 7g
  • Trans Fat: 0.1g
  • Carbohydrates: 7g
  • Fiber: 3g
  • Protein: 8g
  • Cholesterol: 77mg

Keywords: keto chocolate cake, low-carb cake, sugar-free dessert

How to Make This Keto Chocolate Cake Step by Step

This recipe is as easy as it is impressive. You start by preheating your oven to 350°F (160°C fan) and lining two 8-inch springform pans. In a stand mixer, combine the eggs, oil, vanilla, sour cream, almond meal, cocoa, sweetener, and baking powder until smooth. Divide the mixture evenly between your pans and bake for 30 minutes.

When a toothpick comes out clean, they’re done. Let the cakes cool in the pans on a wire rack—this step is crucial. Keto chocolate cakes are tender when warm and need to firm up before frosting. For the frosting, beat softened butter, cream cheese, cocoa, powdered sweetener, cream, and vanilla until light and fluffy. This spreadable, dreamy frosting adds a rich finish without overpowering the cake.

Once your keto chocolate cakes are cool, frost the first layer, stack the second, and top with the rest of the frosting. Smooth it with an angled spatula and chill for 1–2 hours to set. I like to serve this with berries or shavings of dark chocolate when I’m keeping it simple. If you’re after something more elegant, check out the Black Forest twist below.

Step-by-step preparation of keto chocolate cake layers and frosting

Need something equally decadent but quicker? Try my keto chocolate peanut butter cups for a no-bake win.

Make It Special: Keto Black Forest Cake & Customization Tips

Turn Your Keto Chocolate Cake into a Showstopper

When I want to make a cake that really turns heads, I transform this recipe into a keto Black Forest cake. It’s elegant, eye-catching, and shockingly low in carbs. You start by making a simple chocolate ganache: heat a half cup of heavy cream until it simmers, then pour it over chopped dark chocolate. Let it sit for a few minutes, then stir into a glossy dream. This ganache gets drizzled between layers and over the top, creating a rich contrast to the fluffy cake.

Whip the remaining cream to stiff peaks and fold in a little ganache to create a rippled, marbled effect. It adds visual appeal and creamy texture. The final touch? Pitted and halved fresh cherries, arranged in a ring on the first layer and scattered on top. You can garnish with grated dark chocolate for a classic finish.

This variation is perfect for celebrations—it’s indulgent, festive, and still keto-friendly. Each slice feels like a gift. And if cherries aren’t your thing, raspberries or strawberries work beautifully too. This flexibility is part of what makes this recipe so beloved in my kitchen: one base, endless variations.

Whether you’re baking for a birthday, anniversary, or just a Tuesday night, this keto chocolate cake adapts to your needs. Try it plain, frosted, or full glam with fruit and ganache—you’ll never miss traditional cake again.

Smart Substitutions and Pro Tips for Baking Success

Low-carb baking can be intimidating at first, but this cake is very forgiving. Here are a few pro tips from my years in the kitchen:

  • Use room temperature ingredients. Cold eggs and cream can cause the batter to split.
  • Don’t skip the sour cream. It keeps the crumb moist and tender.
  • Weigh your ingredients. Especially almond meal—volume can vary depending on grind.
  • Let it cool completely. Keto chocolate cakes are fragile when hot and firm up as they cool.

If you don’t have sour cream, full-fat Greek yogurt is a great alternative. For the sweetener, choose a powdered version for the frosting to avoid grittiness. I love Sukrin Melis, but powdered erythritol or monk fruit blends also work.

Want to simplify? Bake the batter in one pan and serve it as a single-layer snack cake. Skip the frosting and dust the top with a little extra cocoa or sweetener for a minimalist approach.

This recipe also freezes beautifully. Wrap individual slices and stash them in the freezer for up to a month. Perfect for when those late-night chocolate cravings hit—and they will.

Keto Black Forest cake with whipped cream, cherries, and dark chocolate

Nutrition Breakdown: What Makes This Cake Truly Keto

One of the most common questions I get is, “Can I really eat chocolate cake on keto?” Yes, absolutely—and this recipe proves it. Each slice contains just 4g net carbs, making it a guilt-free indulgence that fits well within most ketogenic daily limits. It’s also packed with 8g of protein and 28g of fat, keeping you full and energized while still satisfying that chocolate craving.

Here’s a quick look at the nutrition per slice:

NutrientPer Slice
Calories292 kcal
Net Carbs4 g
Protein8 g
Fat28 g
Sugar1 g

Because it’s high in fat and low in carbs, this cake supports ketosis while offering a rich, satisfying experience. That’s why I often recommend it to clients who feel like they’re missing out on desserts while transitioning to keto. It doesn’t feel like a compromise—it feels like a reward.

FAQs: Answering Your Most-Asked Keto Chocolate Cake Questions

Why is it called depression cake?

Traditionally, a depression cake refers to a dessert made during the Great Depression when ingredients like milk, eggs, and butter were scarce. It’s known for being made with pantry staples and minimal ingredients. Our keto version is more luxurious, but the spirit of making do with what you have—and still creating something wonderful—remains.

How many carbs are in a keto chocolate cake?

This recipe delivers just 4 grams of net carbs per slice, making it perfectly suitable for a ketogenic lifestyle. The low carb count comes from using almond meal and keto-friendly sweeteners in place of flour and sugar.

Can I have zero sugar chocolate on keto?

Yes, and it’s a great option for baking or snacking. Look for dark chocolate or baking chocolate that’s sweetened with stevia, erythritol, or monk fruit. Always check the label for net carbs and hidden sugars.

What is an old school cake?

An old school cake usually refers to traditional homemade cakes that are simple, no-fuss, and full of nostalgia. Think chocolate sheet cakes, layer cakes, or birthday cakes from childhood. This keto chocolate cake is my modern, low-carb spin on those classics.

Conclusion

This keto chocolate cake is more than a dessert—it’s a celebration of flavor, balance, and joy, without the sugar. Whether you keep it simple or go all-out with the Black Forest version, you’ll have a treat that impresses every time. It’s rich, fluffy, low-carb, and deeply satisfying.

If you try this recipe, I’d love to see your version! Follow me on Facebook and Pinterest for more soulful, keto-friendly creations from my New York kitchen. Let’s stay connected—there’s so much more deliciousness to come.

From my table to yours—enjoy every bite.

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