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
Stephen Decatur Button 1846, he won the competition to design the first Alabama State Capitol in Montgomery; his completed building burned on December 14, 1849. In 1848, he moved to Philadelphia and formed a partnership with his brother-in-law, Joseph C. Hoxie. The firm of Hoxie & Button lasted until 1852. In his brick-and-iron Lewis Building at 239-41 Chestnut Street in Philadelphia (1852), ""Button ... stripped the wall of excessive ornament and designed thin piers and wide voids to open the wall to light. To indicate a skeletal framework, the spandrels were recessed to emphasize the continuous upward flow of the plain piers."" In