This low carb chocolate lava cake delivers a thick, warm puddle of dark chocolate right in the center. You only need one bowl and your microwave to fix that late-night sweet tooth fast.
What Makes This Cake Work
Real chocolate chunks. Pressing solid dark chocolate into the batter guarantees a melty core every time.
Heavy cream moisture. A splash of cream keeps the crumb tender so it doesn’t dry out.
Zero fuss. One bowl means you get dessert without staring at a sink full of dishes afterward.
The Macro Breakdown
This rich treat hits the spot while keeping the numbers in check. Each cake runs about 463 calories, bringing 14.5g of protein and 10.7g net carbs.
Building Your Low Carb Chocolate Lava Cake
I usually melt the butter right in the mixing bowl. Whisk your cocoa powder and sweetener into the warm butter until it forms a thick paste.
Add the eggs one at a time. The batter will look glossy and rich once you stir in the heavy cream and vanilla.
Divide this mixture into three greased ramekins. Push a piece of chopped chocolate right into the middle of each to create that signature sugar free chocolate lava cake center.
Since this is a microwave chocolate lava cake, watch it closely starting at 60 seconds. The edges should pull away while the center still looks soft and jiggly. Let it rest for one minute before eating.
Tweaks, Tips, and Leftovers
Use pasteurized eggs if you prefer a very underbaked, runny center.
Leftovers keep in the fridge for two days. Just reheat for 20 seconds to bring the center back to life.
If you’re coming off a heavy dinner, starting with a bright lemon cucumber salad makes this rich dessert feel balanced.
A rich molten chocolate cake ready in minutes. This single-bowl treat delivers a gooey center with no added sugar, perfect for a quick low-carb dessert.
About 3 oz (85 g high-quality sugar-free dark chocolate, roughly chopped)
Butter or nonstick spray (for greasing)
Instructions
Grease the ramekins or mugs. In a microwave-safe bowl, melt the butter 30 to 40 seconds on high, then let it cool 1 minute.
Whisk in the cocoa powder, powdered sweetener, and salt until a thick glossy paste forms.
Add the eggs one at a time, whisking well after each. Whisk in the cream and vanilla until smooth and slightly aerated.
Divide the batter evenly among the three ramekins, filling each half to two thirds full.
Press one third of the chopped chocolate into the center of each portion, just below the surface.
Microwave one at a time on full power 60 to 100 seconds in a 1000 W microwave, starting at 60 seconds. The cake should pull from the sides and the center should look soft and slightly glossy. If needed, continue in 10 to 15 second bursts.
Rest 1 minute. Serve immediately. Optionally invert onto a small plate.
Notes
For deeper flavor, add ½ tsp instant espresso powder with the cocoa.
Choose sugar-free chocolate without maltitol when possible.
Ideal doneness: edges set, center jiggly not liquid.
Food safety: for a molten center use pasteurized eggs. If using regular eggs, cook until the center reaches 71°C which will reduce fluidity.
Best enjoyed fresh. Refrigerate leftovers up to 2 days. Reheat 20 to 30 seconds.
Serve with unsweetened whipped cream, a few berries, or a light dusting of powdered sweetener.
Nutrition Facts (1 of 3 cakes):Calories: 463 kcal | Total Fat: 39.5 g (Saturated Fat: 23.2 g) | Total Carbs: 52.9 g (Fiber: 10.2 g, Net Carbs: 10.7 g) | Protein: 14.5 g | Sodium: 284 mg
These values are approximate and may vary based on ingredients and preparation.
Nutrition
Calories:463
I rely on this recipe when a craving hits hard on a busy weeknight. It fits right into my keto meal plan without any stress. If you need another quick fix later, my one-bowl keto skillet chocolate chip cookie hits the same spot.
Quick reminder: I share what works in my kitchen, not medical advice. Talk to a pro if you’re making health-related decisions.
Hi, I’m Emily! As a wellness researcher and recipe developer, my mission is simple: to bridge the gap between nutritional science and the joy of eating. Here, you’ll find evidence-based recipes that feed your body without boring your tastebuds. Read her full story.
