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 High School Portobello High School Portobello High School is a large secondary school in Portobello in the east of Edinburgh. With over 1300 pupils it is one of the largest state schools in Edinburgh, and Scotland. The headteacher is Ruth McKay. In early 2006, the City of Edinburgh Council engaged professional consultants to conduct a feasibility study on possible sites for the redevelopment of Portobello High School. This led to a statutory educational consultation, as well as a public consultation, on three possible options. The resulting report of the consultation was approved by the Council in December 2006. In December 2008, the