In a large mixing bowl, combine flour and salt, then create a well in the center. Gradually pour in warm water and oil, mixing with a wooden spoon until combined.

Use your hands to knead the dough for about 5-7 minutes until smooth and elastic. Cover the bowl with a kitchen towel and let the dough rest for 30 minutes while you prepare the filling.

In a separate bowl, mix together ground beef, chopped green onion, diced onion, oyster sauce, soy sauce, black pepper, grated fresh ginger, and ¼ cup of water.

Combine the ingredients well with your hands, ensuring the mixture is evenly seasoned. Microwave a small spoonful of the filling for 30 seconds to taste and adjust if needed, then set aside.

Divide the rested dough into 8 equal pieces and roll each piece into a circle about ¼-inch thick on a floured surface.

Place approximately 2.5 tablespoons of the beef filling in the center of each dough circle. Carefully fold the dough over to create a half-moon shape and pinch the edges tightly to seal.

Heat 2 tablespoons of oil in a non-stick pan over medium heat. Once the oil is shimmering, gently place the meat pies in the pan, avoiding overcrowding.

Cook for 4 minutes or until the bottoms are golden brown. Cover the pan, then flip the pies and cook for an additional 3-4 minutes until crispy and the filling is cooked through.

Remove the Chinese Crispy Beef Meat Pies from the pan and place them on a paper towel to absorb excess oil. Serve hot with homemade chili oil or black vinegar for dipping.