Sautéed Cod With Rich Ketchup Sauce

Name: Sautéed Cod With Rich Ketchup Sauce
Ingredients: 1 stick plus 2 tablespoons (5 ounces) unsalted butter; 1/4 cup ketchup; 1/4 cup soy sauce; 1/4 cup red wine vinegar; 1/2 teaspoon Tabasco; 1/4 cup plus 1 tablespoon extra-virgin olive oil; 1/2 cup finely chopped onion; 1 garlic clove, minced; 1 red bell pepper, finely diced; 2 celery ribs, finely diced; 1 serrano chile, seeded and minced; 1 plum tomato—peeled, seeded and finely chopped; 6 large green olives, pitted and coarsely chopped; 6 alamata olives, pitted and coarsely chopped; 1 tablespoon nonpareil capers; Pinch of saffron threads; 2 teaspoons shredded basil; 1 teaspoon thyme leaves; Four 6-ounce skinless, boneless cod steaks, about 1 inch thick; Salt and freshly ground pepper