A great use for balsamic's sweet and tart flavor. An inexpensive balsamic is just fine for this recipe. The wine is the ingredient that acidifies the conserve and sets the tone, so it is necessary. Use an inexpensive but drinkable wine for this, the variety you prefer doesn't matter, as long as it's dry (so-called "cooking wine" is not an option, EVER, for ANYTHING). Serve alongside meats or sparingly as a pizza topping with a tangy cheese and some bits of prosciutto for a salty element. From "The Complete Book of Small-Batch Preservation".