Separately, in a large saucepan or a wok , add onion, garlic and bay leaf to fry in olive oil.
Toss in pork and beef ground meat once the bay leaf releases its fragrant. Stir-fry the meat, when it is nearly cooked, add salt. Continue to stir the meat until it is totally loosen and has absorbed its own juice. Add pepper, soy sauce (light & dark), cumin powder, few drops of worcestershire sauce and sugar.
When the minchi is ready, add potatoes to it and mix it.