For the Filling: Heat vegetable oil over medium heat in a pan. Add onions and garlic, and sauté until softened. Add ground beef and cook until browned. Drain excess fat.
- Add diced potatoes, carrots, curry powder, thyme, paprika, white pepper, ginger, and salt to the pan. Cook for 5-7 minutes, then add broth and simmer for 15-20 minutes until vegetables are tender. Let the filling cool.
- For the Dough: In a mixing bowl, combine flour, baking powder, and salt. Add cubed cold butter and mix until crumbly. Gradually add water until the dough comes together. Wrap in plastic and chill for 15-20 minutes.
- Roll the dough out on a floured surface to 1/8-inch thickness. Cut circles (about 4-5 inches in diameter) for the pies. Place a spoonful of cooled filling on each circle.
- Seal the pies by folding the dough over the filling and crimping the edges with a fork. Brush the tops with a beaten egg.
- Preheat the oven to 375°F (190°C). Place the pies on a baking sheet and bake for 25-30 minutes, or until golden brown.
- Cool for a few minutes before serving. Enjoy!