I'm excited to make the vegetarian mushroom
thyme gravy. What is the best kind of sherry to buy? Is the grocery store stuff gross?
Yes, better to go to a liquor/wine store and buy an inexpensive "fino" sherry -- which is the white, dry kind.
Yes, the grocery store stuff is gross. Use a good quality Spanish sherry. California produces great wines but so far sherry is not one of them.
Depends on where you live. Here in NH our grocery stores have a wine department with a pretty good selection and range of quality. What you really want to avoid is the old fashioned "cooking sherry" which is rotgut with salt. I wouldn't waste truly exquisite sherry on gravy -- it's to drink and enjoy.