Keto Chocolate Lava Cake – Rich, Gooey, and Low-Carb
Chocolate cravings don’t check your diet plan, and that’s exactly why this dessert exists. This Keto Chocolate Lava Cake is rich, warm, and satisfyingly gooey in the middle—without the sugar crash. Everything comes together in minutes, so it’s perfect for date night, a quick treat, or a fancy-feeling dinner finale.
You won’t need special equipment or obscure ingredients, either. Just a few pantry staples and a ramekin, and you’re on your way to molten bliss.
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Get Your Program TodayWhat Makes This Recipe So Good

- Truly molten center: You get that classic lava flow thanks to timing and the right fat-to-cocoa ratio.
- Keto-friendly sweetener: Uses erythritol, allulose, or a monk fruit blend to keep carbs low and taste clean.
- Single-serve or scalable: Make one, two, or four at a time without fuss.
- Ready in under 20 minutes: Minimal prep and fast bake time make this an easy weeknight dessert.
- Chocolate-forward flavor: Dark cocoa and sugar-free chocolate give a deep, satisfying taste without bitterness.
Shopping List
- Unsalted butter
- Sugar-free dark chocolate (70–85% style, sweetened with erythritol/allulose or unsweetened baking chocolate)
- Almond flour (blanched, super-fine)
- Unsweetened cocoa powder (Dutch-processed or natural)
- Granulated keto sweetener (erythritol, allulose, or a monk fruit blend)
- Large eggs
- Pure vanilla extract
- Fine sea salt
- Optional: espresso powder (for deeper chocolate flavor)
- Optional for serving: whipped cream (unsweetened or lightly sweetened with keto sweetener), fresh raspberries, powdered erythritol, or a drizzle of sugar-free chocolate sauce
Step-by-Step Instructions

- Prep your ramekins: Preheat the oven to 400°F (200°C). Generously grease two 6-ounce ramekins with butter.
Dust with a little cocoa powder to prevent sticking.
- Melt the chocolate and butter: In a heatproof bowl, add 3 ounces sugar-free dark chocolate and 4 tablespoons butter. Microwave in 20–30 second bursts, stirring between each, until smooth. You can also melt over a double boiler.
- Whisk in sweetener and flavoring: Stir in 3–4 tablespoons granulated keto sweetener, 1 teaspoon vanilla extract, and a pinch of sea salt.
If using, add 1/4 teaspoon espresso powder.
- Add eggs: Whisk in 2 large eggs until the mixture is glossy and thick. Don’t overbeat—just combine well.
- Fold in dry ingredients: Sift together 2 tablespoons almond flour and 1 tablespoon unsweetened cocoa powder. Fold into the batter until no streaks remain.
The batter will be thick but pourable.
- Fill the ramekins: Divide the batter evenly between the prepared ramekins. Tap gently on the counter to release air bubbles.
- Bake: Place on a baking sheet and bake for 8–10 minutes. The edges should look set and slightly pulled from the sides, while the center remains soft and a little jiggly.
- Rest briefly: Let the cakes rest for 1 minute out of the oven.
Run a thin knife around the edges to loosen.
- Invert and serve: Place a small dessert plate over each ramekin, flip, and lift off. Dust with powdered erythritol if you like, add whipped cream or raspberries, and serve immediately for the lava effect.
Keeping It Fresh
These are best eaten right away for that molten center. If you have leftovers, store them tightly covered in the fridge for up to 2 days.
Reheat gently in the microwave for 10–15 seconds to warm the center without overcooking.
For meal prep, you can mix the batter, fill ramekins, and refrigerate covered for up to 24 hours. Bake straight from the fridge, adding 1 extra minute as needed. Don’t freeze the assembled batter—the texture can become grainy. Instead, bake fully, cool, wrap, and freeze up to 1 month.
Reheat from frozen at a low oven temperature (300°F/150°C) until warm.

Health Benefits
- Low in sugar: Using keto sweeteners helps reduce blood sugar spikes and supports low-carb goals.
- Higher fat, moderate protein: The butter and eggs provide satiating fats and protein to help you feel satisfied.
- Cocoa antioxidants: Dark cocoa contains flavonoids that may support heart health and reduce oxidative stress.
- Gluten-free: Almond flour makes this naturally gluten-free while adding vitamin E and magnesium.
What Not to Do
- Don’t overbake: A minute too long turns lava into a regular cake. Pull them when the center still looks soft.
- Don’t skip greasing and dusting: The ramekins need that barrier so the cakes release cleanly.
- Don’t use coarse almond meal: It makes the texture gritty. Choose super-fine blanched almond flour.
- Don’t rely on chocolate chips alone: Some sugar-free chips don’t melt smoothly.
Use a bar or baking chocolate for the base.
- Don’t over-sweeten: Keto sweeteners can taste cooling or bitter if overused. Start with the suggested amount and adjust next time.
Variations You Can Try
- Peanut butter center: Freeze small dollops of natural peanut butter. Press one into the center of each filled ramekin before baking for a molten PB core.
- Mint-chocolate: Add 1/4 teaspoon peppermint extract to the batter and top with crushed sugar-free peppermint pieces.
- Salted caramel style: Swirl in a teaspoon of keto caramel sauce and finish with flaky sea salt.
- Hazelnut twist: Replace almond flour with fine hazelnut flour and add a few drops of hazelnut extract.
- Extra-dark: Use Dutch-processed cocoa and a higher cocoa-percentage sugar-free chocolate for a bolder, less sweet profile.
FAQ
Can I make this dairy-free?
Yes.
Use coconut oil in place of butter and choose a dairy-free, sugar-free dark chocolate. The texture will be slightly different, but still rich and melty.
What’s the best keto sweetener for lava cake?
Allulose or a monk fruit-allulose blend melts beautifully and tastes closest to sugar. Erythritol works too but can be a bit grainy if you use too much.
Powdered versions blend more smoothly.
How do I know when it’s done?
Look for set edges and a soft, slightly sunken center that jiggles when you shake the ramekin. Start checking at 8 minutes; your oven and ramekin size will affect bake time.
Can I bake it in a muffin tin?
Yes. Grease well and dust with cocoa.
Start checking at 7–8 minutes since muffin cups are smaller and heat faster.
What if I only have unsweetened baking chocolate?
Use it and add an extra 1–2 teaspoons of sweetener to balance the bitterness. Taste the batter and adjust slightly if needed.
Is this truly keto?
Yes, when made with keto-friendly sweetener and almond flour. Always check your chocolate’s label for net carbs and ingredients to keep it within your daily goals.
Can I make it ahead for guests?
Absolutely.
Fill the ramekins and refrigerate up to 24 hours. Bake just before serving and add a minute if the centers seem under-warmed.
Final Thoughts
This Keto Chocolate Lava Cake hits that sweet spot between indulgent and smart. It’s simple enough for a weeknight and special enough for company.
Keep the ingredients on hand, watch the bake time, and you’ll have a reliable, restaurant-level dessert any time the craving hits. Warm, gooey, and low-carb—exactly what a good treat should be.
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