Salmon Steaks with Spicy Tomato Sauce

Name: Salmon Steaks with Spicy Tomato Sauce
Ingredients: 1 tablespoon caraway seeds; 8 tablespoons (or more) sunflower oil, divided; 3 tablespoons all-purpose flour; 4 8-ounce 1 1/4'-thick, 6'-long salmon steaks (preferably wild); Kosher salt and freshly ground black pepper; 6 garlic cloves, coarsely chopped; 1 serrano chile (with seeds), chopped; 2 teaspoons paprika; 1 1/2 teaspoons ground cumin; 1 /4 teaspoon (generous) cayenne pepper; 1 /4 teaspoon ground cinnamon; 2 tablespoons tomato paste; 2 tablespoons fresh lemon juice; 2 teaspoons sugar; 2 tablespoons chopped fresh cilantro; Lemon wedges