In Russian, a staryi khren, literally “old horseradish,” refers to a person who has been through a lot but has not lost his sharp bite. When properly refrigerated, this tangy homemade horseradish will retain its bite for up to several weeks.
1 6-ounce piece of horseradish root (about half of a large root)
Peel the horseradish root. Grate it coarsely by hand, then place it in a blender or food processor along with the vinegar and salt. Grate it very finely, until a fairly smooth puree has been formed. Let chill at least 2 hours before using.