Molten Chocolate Tart: Timing the Bake

Molten Chocolate Tart: Timing the Bake. The difference between a molten chocolate tart and an ordinary chocolate cake comes down to seconds in the oven. The batter is essentially the same — chocolate, butter, eggs, minimal flour — but the magic happens when the outer shell sets firm enough to hold its shape while the interior remains liquid. At 425°F (220°C), this critical window falls between 6 and 8 minutes for standard 4-oz ramekins. The visual cues are specific: the edges and top should look set and slightly puffed, but the very centre must still show a visible wobble when you gently shake the tray. Touching the centre should feel like a barely-set custard — not liquid on the surface, but clearly not firm. Luke initially planned 8–10 minutes which Marcus immediately flagged as far too long, and he had also conceptualised the dish as a set tart entirely, missing the 'molten' brief until Matt Tebbutt prompted him. The lesson is clear: always read the brief twice, and when in doubt, pull the tart early. You can always return it to the oven for 30 seconds, but an overbaked tart cannot be rescued. The 60-second rest after removal allows the outer shell to firm enough for clean unmoulding.