Flaky Empanadas

Name: Flaky Empanadas
Ingredients: 2 1/4 cups all-purpose flour; 2 teaspoons salt; 1 1/2 teaspoon sugar; 5 tablespoons lard (keep cold); 3 tablespoons butter (keep cold); 1 egg yolk; 1/3 cup ice water; 1 tablespoon rice wine vinegar; 3 tablespoons olive oil; 1 onion, minced; 1 red pepper, minced; 2 plum tomatoes, grated; 1 garlic clove, chopped; 1 1/2 lbs ground meat (beef/pork/veal); 2 tablespoons tomato paste; 1 tablespoon chipotle in adobo, chopped (optional); 3 tablespoons chopped fresh cilantro; 1 tablespoon sesame oil; 2 teaspoons sugar; Salt and freshly ground black pepper; Oil for frying