Turkey Posole

Name: Turkey Posole
Ingredients: 2 dried ancho or pasilla chiles; 1 garlic clove; 2 tablespoons tomato paste; 2 tablespoons olive oil; 1 medium onion, thinly sliced; 2 15-oz. cans white hominy, rinsed; 8 cups turkey stock or low-sodium chicken broth; 2 cups shredded cooked turkey meat; Kosher salt and freshly ground black pepper; Tortilla chips, sliced avocado, cilantro sprigs, and lime wedges (for serving)