Rub the chicken with salt and pepper and let stand for at least 30 minutes.
In a heated pan or pot, pour-in the cooking oil & fry the chicken. Set aside after.
In a heated pot or wok, put-in the butter/margarine.
When the butter/margarine is hot enough, sauté the onions until soft in texture.
Add-in the bay leaves and cook for a minute.
Pour-in tomato sauce and bring to a boil.
Add the soy sauce and lemon juice then stir to ensure that the mixture is properly distributed and simmer for 5 to 7 minutes.
Add the pan-fried chicken and simmer for 10 minutes.
Place the potatoes in and continue to simmer for 7 to 12 minutes.
Serve hot and enjoy your Chicken Asado!