Chocolate Lava Cake with Cocoa Powder (Valentine’s Dessert for Two)
A lava cake is an undercooked cake, on purpose. Everything about the recipe exists to make the outside set before the inside does — which is why the bake time matters more here than in almost any other dessert.
The cocoa powder is not decoration. It deepens the colour and adds the bitter edge that stops a cake this rich from tasting like sweet fudge.
How do you make it?
Makes: 2 ramekins · Prep: 15m · Total: 27m
Ingredients
- 4 oz (115 g) dark chocolate, chopped
- ½ cup (113 g) unsalted butter
- 2 tbsp (10 g) unsweetened cocoa powder
- 2 large eggs plus 2 yolks
- ¼ cup (50 g) sugar
- 2 tbsp (15 g) all-purpose flour
- ¼ tsp salt
- Butter and cocoa powder, for the ramekins
Method
- Prepare the ramekins. Butter them thoroughly, then dust with cocoa powder rather than flour and tap out the excess. Flour leaves a pale coat on a dark cake; cocoa disappears.
- Melt. Melt the chocolate and butter together, then whisk in the cocoa powder until smooth. Let it cool for five minutes so it does not scramble the eggs.
- Whisk the eggs. Beat the eggs, yolks and sugar until pale and thickened, about three minutes. This is where the cake gets its lift — there is no baking powder.
- Combine. Fold the chocolate mixture into the eggs, then fold in the flour and salt just until it disappears.
- Bake. Divide between the ramekins and bake at 425°F (220°C) for 11–12 minutes. The edges should be set and risen while the centre still wobbles when you nudge the tray.
- Rest and turn out. Rest one minute exactly, run a knife around the edge, then invert onto a plate. Longer than a minute and the centre keeps cooking; shorter and it collapses.
How do you know when a lava cake is done?
Look at the edges and the middle separately. The outer inch should be risen, matte and set. The centre circle should still move when you gently shake the tray. If the whole top is firm, the lava is gone.
At 425°F (220°C) that is 11–12 minutes in a standard 6 oz ramekin. Ovens vary, so watch the cake rather than the clock the first time.
Why did my lava cake not flow?
Overbaked, almost always by one or two minutes. The second cause is resting it too long before turning it out — a lava cake carries on cooking in a hot ramekin.
Can you make lava cakes ahead?
Yes, and this is the trick worth knowing for a dinner. Fill the ramekins, cover and refrigerate up to 24 hours. Bake straight from the fridge and add 2 minutes. Do not bake them ahead and reheat — reheating sets the centre.
Why add cocoa powder if there is already chocolate?
Melted chocolate brings sugar and cocoa butter with it. Cocoa powder brings cocoa solids with almost no fat or sugar, so it deepens flavour and colour without loosening the batter. Two tablespoons is the difference between a good lava cake and one people ask about.
Because it does so much of the flavour work, a dull cocoa shows here. Choosing cocoa for baking covers what to look for.
Can you make it gluten-free?
Yes. The recipe only uses 2 tablespoons of flour, so a 1:1 gluten-free blend swaps in directly with no other change.
The cocoa matters more than anything else here. Ours is single-origin Vietnamese Trinitario — unsweetened, non-alkalized, with heavy-metal and flavanol reports published in full on our Lab Results & Awards page. Shop on Amazon →
Common questions
How do you know when a lava cake is done?
The outer inch should be risen and set while the centre still wobbles when the tray is nudged. At 425F that is usually 11 to 12 minutes.
Why did my lava cake not have a molten centre?
It was overbaked, usually by only a minute or two, or it rested too long in the hot ramekin before being turned out.
Can lava cakes be made ahead of time?
Yes. Fill the ramekins and refrigerate up to 24 hours, then bake from cold and add two minutes. Do not bake ahead and reheat.
Why add cocoa powder when the recipe already has chocolate?
Cocoa powder adds cocoa solids without extra fat or sugar, deepening colour and flavour without making the batter looser.
Where to go next
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.