Step 1In a large bowl, combine the ground meat, onion, ginger, chiles, fresh coriander, mint (if desired) and egg. Season with salt and mix thoroughly. Shape into 4 to 6 flat patties about 1-inch thick.
Step 2Heat a large cast-iron or heavy-bottomed skillet with the merest film of oil over medium-high heat. Reduce the heat to medium and fry the burgers on both sides until brown, about 7 to 12 minutes a side, depending on the thickness. If the burgers are browning too quickly, reduce the heat to medium-low. Serve immediately.