Puff Pastry :
1 set puff pastry (1 1/4 lb, available in supermarket)
Filling:
1 lb minced beef
1 1/2 teaspoon salt
1/2 teaspoon sugar
2 tablespoons cornstarch
1/3 cup cold water
3 tablespoons oil
20 pearl onions, minced
3 gloves garlic, minced
1 onion, minced
1 teaspoon curry oil
1 tablespoons curry powder
1 tablespoons wine
1 egg-yolk, whisked