Smoked Fish and Potato Soup With Chorizo

Name: Smoked Fish and Potato Soup With Chorizo
Ingredients: 2 tablespoons olive oil; 1 large onion, diced (about 1 1/2 cups); Salt and pepper; 6 ounces chorizo, diced; 1 pound yellow-fleshed potatoes, peeled and cut in 1-inch cubes; 1 bay leaf; 6 cups chicken broth or water; 2 medium leeks, white and tender green parts, diced (about 2 cups); 1 pound smoked sablefish or smoked mackerel, in 1-inch chunks; 8 ounces piquillo peppers from a jar, cut in 1/2-inch strips; 1 cup roughly chopped cilantro leaves and tender stems; Lime wedges, for serving