Brazilian Chicken Pot Pie (Empadão de Frango)

Name: Brazilian Chicken Pot Pie (Empadão de Frango)
Prep time: 55 min
Cook time: 30 min
Total time: 1 h 25 min
Cuisine: American, Latin American
Ingredients: 2 tablespoons olive oil; 2 medium onions, finely chopped; 2 garlic cloves, minced; 2 tomatoes, chopped; 2 pounds chicken breast, cooked and shredded; 1/2 cup chopped green olives; 1 cup corn (optional); 1 cup green peas (optional); 1 cup hearts of palm, chopped (optional); 1 cup tomato sauce; A couple dashes of hot sauce; 2 cups chicken broth; 1 tablespoon flour dissolved in 1/3 cup milk; 1/2 cup chopped parsley; Salt and pepper to taste; 5 cups flour; 1 teaspoon salt; 3 egg yolks; 1/4 cup to 1/2 cup cold water; 3 sticks butter (12 ounces), cut into smaller pieces; 1 egg yolk, lightly beaten, for brushing