Is there a substitute for Sherry vinegar? Red wine vinegar perhaps?

If it's a salad dressing, sure red wine vinegar. Balsamic? Well, I have to add that it's one of the most misused ingredients in the American pantry because most of it is crap. I'm a real believer in good Spanish sherry vinegars. And they are not terribly expensive.

I'm getting more and more philosophical about food, so I'll ask you, Cheri Cheri, what is it that you want to make sour? Sour is good; sour is what vinegar does. Get in command of your cooking and don't substitute, choose!

Of course, Merrill, above, nearly a mom, has the perfect answer: red wine vinegar.

Balsamic vinegar can also be substituted

Red wine vinegar is probably the best substitute, yes.