Baked Chicken Empanada

Name: Baked Chicken Empanada
Ingredients: * for the crust: 2 1/2 cup all purpose flour; * 1 tablespoon sugar; * 3/4 teaspoon salt; * 1 cup (2 stick) chilled unsalted butter,; cube; * 6 tablespoon (about) ice water; * for the filling: 2 large chicken breast; * 1 medium carrot, diced ( to measure 1 cup); * 1 small potato, diced ( to measure 1 cup); * 1/2 cup frozen green pea; * 1/2 cup raisin; * 4 clove garlic, minced; * 1 small onion, diced; * 1/2 cup chicken broth; * 2 tbsp sugar; * salt and pepper, to taste; * 3-4 tbsp cooking oil; * for the egg wash: 1 egg plus 1 teaspoon milk, whisked together