Bombe Montmorency

Bombe Montmorency (kirsch ice enclosing a creamy frozen cherry centre) teaches the architecture of every bombe glacée: a thin, firm shell must hold a softer, richer heart. The one true thing to know before touching a pan is that the shell must be even, about 1 cm thick everywhere, with no bald seams and no great polar cap at the top.

The original assumed a pastry station with Kirsch ice and cherry Bombe-preparation already waiting, bombe moulds packed in salted ice, and several hands to coat, fill, and freeze them. At home, one 1-litre metal mould, a small ice-cream machine, and an ordinary freezer do the same work. I have made the unnamed cherry preparation explicit as a pâte à bombe enriched with whipped cream because a home cook cannot reach for a house batch. The brigade's store of ready-made components is scaffolding and can go; the Kirsch shell, cherry centre, and half-candied cherry surround are the dish and must stay. One cook, one stove, one evening.

Montmorency cherries are sour by nature, which is precisely why they belong here. Sweeten the purée until it tastes vivid and generous, but keep the Kirsch ice clean and spirit-forward. Coat the mould patiently before you make the filling; if the ice slumps or leaves a thin patch, freeze it briefly and mend it with another spoonful. Ça se rattrape.