Poach your leeks to perfection, then pair with pickled pears and nutty miso

I have a great respect for the leek, which is possibly the most demanding vegetable in its need to be freshly cooked before consumption. A warm leek, fresh from the pot, is an ethereal, collapsing sigh of diaphanous veils, whereas cold it can all too easily become a slippery and almost slimy mess of hopelessness.

Jackson Boxer is chef/owner of Brunswick House, Vesper and Dove, all in London, and culinary director of Cowley Manor near Cheltenham and the Henrietta in London

This fantastic tart is a minor miracle invented by a legendary chef, yet it has very few ingredients and an intriguing technique for baking it

Often, the greatest dishes are made from very few ingredients and with pretty standard techniques, and this tart is one of them. It’s based on an old Frédy Girardet recipe that, despite his reputation as one of the all-time greats, calls only for a simple application of process to deliver a knockout result (which is one reason I put it in my latest book). A pastry case is spread with sugar and cream, then dotted with butter and sprinkled with cinnamon. The pastry is not blind baked, but filled and baked in a very hot oven. That sounds wrong, but it is not: a fierce heat is needed to bake the pastry under its filling and to meld the cream, sugar and butter. A pinch of flour is mixed with the sugar and, as it all boils up, that smidgen of flour holds everything together as it bubbles and reduces until it takes on the appearance of condensed milk while the pastry cooks and toasts at the edges. I still use Girardet’s quantities because, unsurprisingly, they work perfectly. Merci, chef.

Henry Harris is chef/co-owner of Bouchon Racine, London EC1. His book, The Racine Effect, is published by Quadrille at £40. To order a copy for £36, go to guardianbookshop.com