Oyster sauce salt, should be added to the sauce, since the oysters should provide all the savoury flavour. However, this method is prohibitively expensive. Many modern oyster sauces are thickened with cornstarch, flavoured with oyster essence or extract and darkened with caramel. Vegetarian oyster sauce prepared from mushrooms, often oyster mushrooms or shiitake mushrooms, is also popular and generally lower in price. It may contain more taste enhancers if less mushroom extract is used to reduce costs. Most of the oyster sauces available on the market contain added monosodium glutamate (MSG). In recent years MSG-free varieties can also be found. The taste
Portobello Road is now Notting Hill Gate, up to Kensal Green in the north. In 1740, Portobello Farm was built in the area near what is now Golborne Road. The farm got its name from a popular victory during the lost War of Jenkins' Ear, when Admiral Edward Vernon captured the Spanish-ruled town of Puerto Bello (now known as Portobelo in modern-day Panama). Vernon Yard, which runs off Portobello Road, still honours the Admiral's name to this day. The Portobello farming area covered the land which is now St. Charles Hospital. Portobello Farm was sold to an order of nuns after the