Storage & ReheatingBest made and served fresh, as the molten centre doesn't hold or reheat well. Note that the centre stays deliberately under-baked for the lava effect, so take extra care if serving to pregnant, elderly, very young, or immunocompromised guests. If needed, the batter can be portioned into ramekins and refrigerated for up to 1 day before baking; bake straight from the fridge, adding an extra minute or two to the cook time.