Tomato, Cheddar and Pesto Tart

Ready-rolled puff pastry is the saviour of impromptu dinner parties: it gives off showstopper vibes without taking too much time. Resist the temptation to pour the tinned tomatoes directly onto the cooked pastry: it’s important to cook the tomatoes first to thicken the sauce, otherwise you’ll end up with a soggy bottom. Use any pesto you like – most flavours complement tomatoes – but I prefer the classic Geno basil pesto because, not only does it remind me of holidays in Liguria, the basil