Some alternatives to sherry vinegar include balsamic vinegar, red wine vinegar and rice vinegar. Another way to substitute for this vinegar type is to combine one-quarter part of sherry with three-quarter parts of red wine vinegar.
If all that is available in the kitchen pantry is red wine vinegar, then a person can add a small amount of sugar to impart a sweet taste to the wine vinegar. Likewise, another possible substitute is to use either dry red wine or port.
Sherry vinegar is a product that is made in the southern region of Spain. Just like the famous Spanish sherry wine, sherry vinegar goes through an aging process that can take up to 75 years. Sherry vinegar is suitable for salads, sauces, marinades and gravies.