Use 80/20 ground beef for the best flavor and texture. Leaner beef will work but won't be as juicy. For the soft-boiled eggs, cook eggs in boiling water for 6.5-7 minutes, then transfer to an ice bath. Fresh garlic and ginger make a big difference — avoid the pre-jarred versions if possible. Leftovers keep well in the fridge for up to 4 days. The sauce thickens as it cools, so add a splash of water when reheating.