Mont-Rose

Mont-Rose, a frozen vanilla and candied-fruit charlotte crowned with raspberry cream, teaches that cold is structure. Its Charlotte Plombière rests on a crème anglaise, the pouring custard that gives the frozen centre its velvet texture, while crème Chantilly, sweetened whipped cream, forms the rough pink summit. The one true thing to know before touching a pan is simple: every component must be thoroughly cold before the next one joins it.

The formula assumes a pastry section with a Charlotte Plombière already frozen, a salt-and-ice freezer, and a shallow Madeleine-mould waiting on the shelf. Your kitchen gets a small batch churned in a countertop machine and packed into a 1.2-litre shallow metal mould, enough for eight rather than a dining room. The brigade's extra hands and ornamental mould collection are scaffolding and can go. The vanilla custard ice, kirsch-soaked fruit, biscuit shell, raspberry Chantilly, and sequence of turning out before covering must stay, because they are the dish.

When it is right, the charlotte stands pale and firm beneath loose, craggy spoonfuls of rose-pink cream, with little flashes of candied fruit inside. No piping bag and no polished geometry. One cook, one stove, one evening, with the freezer doing the patient work. Freeze the charlotte completely, then trust the one-second dip; that turn is the step that decides the mountain.