Glace Francillon

Glace Francillon (coffee-clothed liqueur-brandy ice) teaches the governing principle of every moulded ice: texture is architecture. Before you touch a pan, know this one true thing. The coffee ice must be firm enough to hold an even wall yet supple enough to reach the square corners, while the brandy ice must pack inside without melting that wall. The governing technique is chemiser (to clothe the mould), and the word carries the technique.

The original line assumed two finished ices waiting in a pastry freezer, a square mould kept rigid in salted ice, and another pair of hands ready when each texture reached its moment. The home equivalent is an ice-cream maker, a well-frozen metal mould, and two small crèmes anglaises (pouring custards) cooked back-to-back. Brigade quantity and the salted-ice apparatus have gone because they are scaffolding. The coffee shell, the brandy filling, and their precise sequence are the dish, so they stay. One cook, one stove, one evening.

Turned out, the Francillon should be almost severe: a plain coffee-brown square that cuts to reveal a pale, aromatic center. There is no garnish to distract from weak coffee or careless moulding. Make the coffee infusion bold, then give the chemisage your full attention; that even shell is the step that decides everything.