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, Edinburgh the road, one of the main routes into Portobello, is due to be closed to all traffic for over a year while the work is completed. Portobello is served by Lothian Buses & East Coast Buses, which provides eleven services to the area, continuing towards Joppa and Eastfield to Musselburgh, Port Seton, Tranent or North Berwick, or down Brighton Place to Fort Kinnaird or Royal Infirmary, or from Kings Road to Craigentinny. Portobello's first railway station was initially served by the Edinburgh and Dalkeith Railway. The Portobello (E&DR) railway station operated from 1832 until 1846, when it was replaced by