Griddled leeks with romesco and toasted hazlenuts
Thomasina Miers demonstrates how to make this classic Spanish dish and teaches you one of the best sauces ever: romesco

Romesco is a rich, smoky sauce from Catalonia which harnesses the sweet, charred flavours of roast tomatoes and garlic with nuts and chillies. The ancho chilli from Mexico is very similar to the Spanish Nora commonly used in this sauce so it feels like a natural step to give it a Mexican accent with the ancho. Red wine vinegar adds sparkle. A delicious sauce to accompany the leeks or any kind of char-grilled vegetable, including asparagus.