"Cooking sherry" is sherry of inferior quality with salt added to make it unpalatable for drinking. It was developed during a time when servants did most of the cooking, in order to prevent them from...
Yes, they are essentially the same product.
Cooking sherry contains salt; dry sherry does not. Cooking sherry cannot be used in drinks at all (it's only palatable in cooking--hence the name). If...
in reference to wines ,DRY is defined as being free of sweetness or any fruitiness in taste,therefore a dry sherry has those characteristics and the labels carry the notations of BRUT, SEC, SECO,...