Chilean Beef Turnovers

Name: Chilean Beef Turnovers
Cuisine: American
Ingredients: 3 ½ cups (450 g) all-purpose flour; 1 teaspoon salt; ½ cup (120 g) unsalted butter, chilled and cubed; ¾ cup (180 ml) warm milk; 1 egg, lightly beaten (for brushing); For the filling (Pino); 2 tablespoons olive oil; 1 large onion, finely chopped; 1 pound (450 g) ground beef; 1 teaspoon cumin; 1 teaspoon paprika; ½ teaspoon oregano; Salt and pepper to taste; 2 hardboiled eggs, diced; ¼ cup (50 g) black olives, pitted; ¼ cup (50 g) raisins