Heat oil in a wide cooking pot
Dredge the slice lengua in flour (shake away the excess flour) and then pan-fry in medium heat for 1 minute per side. Set aside.
Add onion and garlic on the pot. Continue to cook until the onion gets tender.
Pour the can of diced tomato and white wine. Stir.
Add the pan fried beef lengua.
Stir-in soy sauce and water. Add the Knorr Beef Cube. Let boil.
Add the bay leaves. Cover and cook in low heat until the sauce reduces to half.
Add the vinegar. Allow the sauce to re-boil.
Add sugar, green olives, black olives, and mushrooms. Stir. Cook for 5 to 8 minutes.
Sprinkle some salt and ground black pepper to taste.
Transfer to a serving plate. Serve.
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