Bombe Marie Louise

Bombe Marie Louise (a raspberry-lined frozen vanilla cream) teaches chemiser le moule, clothing the mould, so one frozen mixture becomes the shell for another. The one true thing is this: the raspberry coat must freeze solid before the vanilla pâte à bombe, a hot-syrup yolk base lightened with cream, ever touches it. Hold that boundary and every slice reveals a clean garnet ring around an ivory heart.

The original assumed a dedicated bombe mould packed into salted ice, raspberry ice and vanilla preparation waiting in separate hands, and the broken-ice rocking used for elaborate aspics. At home, a 1.5 litre metal bowl, an ordinary freezer, and either an ice cream machine or a shallow tray do the work. The rocking and repeated handling were brigade scaffolding, so they can go. The even fruit shell, the cooked vanilla syrup, and the aerated centre are the dish, so they stay. One cook, one stove, one evening.

Split a real vanilla pod into the hot syrup and give it time there. Extract stirred into a cold mixture tastes thin once frozen, while the pod carries perfume through the cream and fruit. Freeze the raspberry lining until it feels hard beneath your fingertip before filling it. If the ice slips while you spread it, stop and chill both mould and mixture. Ça se rattrape.