Salteñas (Beef and Onion Pastry)

Name: Salteñas (Beef and Onion Pastry)
Ingredients: 3/4 lb minced beef; 1 large potato (peeled); 1/2 large onion (diced); 1 spring onion (chopped); 1/4 cup fresh parsley; 1 tablespoon olive oil; 2 teaspoons sugar; 1 teaspoon aji chili powder (cayenne or hot paprika can be substituted); Pinch of cumin; Pinch of black pepper; 1/2 teaspoon salt; 3/4 cup water; I package unflavored gelatin (25 oz); 2 hard boiled eggs (sliced thinly); 1 small can or jar of sliced black olives; 1/2 cup raisins; 3 cups all- purpose flour; 1/8 cup white sugar; 1/2 teaspoon salt; 1/2 cub butter (cubes); 3/4 cups hot water; 1 egg (beaten); 1 teaspoon water; 2 teaspoons aji chili powder or substitute cayenne pepper or hot paprika