Romesco is a Catalonian sauce made from tomatoes and nuts—and it makes a delicious pre-meal appetizer or snack with veggies! It pairs beautifully with harissa-spiked hummus. Make this romesco as smooth or chunky as you like—and up to three days ahead. Use leftovers as a sandwich spread or sauce to top meat or pasta. Sunchokes are sometimes labeled as Jerusalem artichokes. If you can’t find them, sub fingerling potatoes.