Romesco sauce is a classic Spanish sauce made from roasted red peppers, almonds, garlic, and olive oil, blended with tomatoes to create a rich and flavorful condiment. Jamie Oliver’s version stays true to the authentic flavors, adding a touch of smoked paprika for extra depth. This sauce is smooth yet chunky, providing a lovely balance of textures that pairs beautifully with everything from grilled meats to roasted vegetables.