Gollash Recipe (Sudanese Filo Meat Pie)

Ingredients

• 1 1/2 lb lean ground beef
• 1 onion, diced (about 1 cup)
• 1 tablespoon allspice
• 1 teaspoon cinnamon
• 1 teaspoon garlic powder
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 2 tablespoons olive oil
• 20 sheets filo pastry, thawed
• 1/4 cup melted butter
• 1/4 cup olive oil, for brushing
• 1 cup full-fat or semi-skimmed milk
• 1 egg
• 1/4 teaspoon salt, for the custard
• A dash of black pepper, for the custard