Tiramisu

Tiramisu is assembled, not baked. Dry sponge-finger biscuits are dipped in cold coffee and layered with a cream made by whipping egg yolks with sugar and folding in mascarpone; the top is dusted with unsweetened cocoa. There is no flour, no gelatin and no oven at any stage: the only heat involved is the coffee, and that has to be cold before it touches the biscuits.

The working ratio is one egg yolk to 100 g of mascarpone and 20-25 g of sugar. A 20x30 cm dish serving eight people takes roughly 500 g mascarpone, five yolks, 120 g sugar, 300 g of savoiardi and 350-400 ml of espresso.

The recipe registered by the Accademia Italiana della Cucina with the Treviso Chamber of Commerce lists six ingredients and stops there: savoiardi, egg yolks, sugar, mascarpone, coffee, cocoa. No whipped cream, no marsala, no rum. The name comes from the Treviso dialect phrase 'tirame su', pull me up, and the dessert was built to be eaten by children and by people recovering from illness, which is exactly why the original has no alcohol in it.

Everything else you meet abroad arrived later: cream folded in to lighten and stabilise the mascarpone, liqueur in the coffee, gelatin in the supermarket tubs, and sponge cake in place of the biscuits.

Bitter first, then sweet. A well-made portion leads with cocoa and coffee, and the sugar arrives underneath rather than on top. Mascarpone is not tangy the way cream cheese is, having no lactic sourness at all, so what you register is fat, dense and cool, coating the spoon and clearing quickly.

The texture is the part people are not ready for. It is not cake and not mousse: the biscuit layer has gone soft and yielding without dissolving, and it sits under a cream that holds a spoon mark for a couple of seconds before it slumps. Nothing crunches. If something in your portion is still crisp, it was assembled less than four hours ago.

One portion carries real caffeine, somewhere around 40 to 80 mg, roughly one espresso, so late-evening portions are not a neutral choice. The raw egg gives it a savoury weight that a cream-and-gelatin version never has, and the difference between the two is easy to spot once you have tasted the first kind.

The coffee has to be cold. Brew espresso or moka coffee, let it drop to room temperature or colder, then dip each biscuit one second per side, two at most. Hot coffee turns the bottom layer into sludge in seconds, and filter coffee is too weak and too acidic to register under the cream.

Bring the mascarpone to 14-16 C before you touch it: fridge-cold mascarpone seizes into lumps that never smooth out. Whip the yolks with the sugar until the mixture ribbons off the whisk and holds for a few seconds, then fold the mascarpone in gradually and stop the moment it is uniform. Overworking mascarpone splits it exactly like overwhipped cream, and there is no recovering it.

Layer biscuits, cream, biscuits, cream, level the top and refrigerate for at least four to six hours. Overnight is better: the biscuit needs that time to draw moisture out of the cream and stop being a biscuit. Dust the cocoa through a sieve immediately before serving, never in advance, or it absorbs moisture and goes patchy and wet within half an hour.

Serve it cold but not straight from the fridge: fifteen minutes out lets the coffee and cocoa come back. Skip fresh pineapple in any variation: the bromelain breaks the cream down within hours.

A shop-bought tiramisu carries a date on the label, and that date and the maker are the reference for it. The rest is physical change. It is a 2 to 4 C fridge product and it moves quickly once cut: the exposed face dries and skins over within a day, the biscuit keeps drawing moisture out of the cream until the layers blur into one, and the cocoa takes up water from the surface and goes from dry powder to dark wet patches within hours.

Keep it under a rigid lid, or with film stretched across the rim rather than laid on the cream, since cling film in contact peels the cocoa off with it. Dust the cocoa at serving if it is staying more than a day. It freezes at minus 18 C for about a month, best portioned first, and thaws in the fridge over six to eight hours; brought back at room temperature the mascarpone weeps whey and the cream splits. Much of the chilled tiramisu sold abroad was frozen at the factory, so the packet states whether that applies.

Judge a tiramisu you did not make with the spoon before the tongue. The cream should hold the mark for a few seconds and then slump slowly: if it springs back there is gelatine or a setting agent in it, if it runs at once the mascarpone was overworked or stretched with whipped cream. The colour is pale ivory, not bright yellow (added colouring) and not white (few yolks, much cream). In a cut portion the layers still read separately and the soaked biscuit keeps its outline.

Cocoa tells you the rest: matt and powdery means it was sieved on shortly before serving, glossy or blotched with dark patches means hours earlier or a spell in a freezer. Most of what is sold as tiramisu abroad is a frozen industrial slab (Bindi is the biggest restaurant supplier in both the US and the UK), and it gives itself away with identical portions, sharp vertical edges and a faintly wet surface. Price is a rough guide: a pasticceria tub in Italy runs 18 to 26 euros a kilo against 8 to 14 for supermarket, and the gap is cream and thickeners.

In the US, mascarpone is stocked at Whole Foods, Wegmans, Trader Joe's and most large supermarkets; BelGioioso from Wisconsin and Galbani are the common brands, at 5 to 8 dollars for an 8 oz tub. Savoiardi are the harder half. American 'ladyfingers' are often the soft-baked kind, which collapse on contact with coffee. Look for the crisp Italian imports from Vicenzi, Balocco or Bonomi at Italian delis and online, 4 to 7 dollars a packet.

In the UK, every major supermarket carries mascarpone at 2 to 3 pounds for 250 g, own-label included. The biscuits are sold as sponge fingers or boudoir biscuits in the baking aisle at 1.20 to 2 pounds a pack; avoid anything labelled trifle sponges, which are far softer. Waitrose and Italian delicatessens stock proper savoiardi.

For a ready-made one: in Italy, 18 to 26 euros per kilo from a pasticceria against 8 to 14 from a supermarket chiller. Abroad, a great deal of the tiramisu served in Italian restaurants arrives frozen from industrial suppliers, Bindi being the largest in both the US and the UK, which is why so many restaurant portions have identical sharp edges and a faintly wet-looking cocoa surface.

A slice runs 9 to 14 dollars in an American restaurant and 6 to 9 pounds in a British one.

Treviso, half an hour north of Venice, is the place to start. Le Beccherie in Piazza Ancilotto is the address the whole claim rests on: it closed in 2014 at the end of the Campeol family's run and reopened in 2016 under new ownership, still serving the original version with no cream and no liqueur. The pasticcerie around the old centre all make their own, and tasting two or three in an afternoon shows how much the yolk-to-mascarpone ratio changes things.

Since 2017 the town has hosted the Tiramisù World Cup, a competition open to amateurs rather than professionals, with separate categories for the original recipe and for creative versions. It is the densest tasting opportunity of the year.

The rival claim lives in Carnia, in the mountains of Friuli. Al Vetturino in Tolmezzo, associated with Norma Pielli, and the Albergo Roma in the same town both predate the Treviso date by their own accounts, and the drive from Udine takes about an hour.

In Venice, where quality varies wildly with the tourist trade, the specialist shops near San Marco (I Tre Mercanti is the best known) sell it by the portion to take away.