"Champagne vinegar" is a type of vinegar made from champagne or sparkling wine. It has a tangy and slightly sweet flavor that is often used in cooking and dressings to add a unique taste to dishes. Full definition
Or, make fresh by blending 1/2 cup fresh or frozen berries with 1/4 cup champagne vinegar, 1/4 cup fresh lime juice and 1 tablespoon honey. (thefitfork.com)
This is a healthy homemade dressing with fresh cilantro, lemon juice, garlic, honey and champagne vinegar for a perfect salad dressing or fantastic marinade for meat. (idealme.com)
I made a similar variation, but I use champagne vinegar instead. (aggieskitchen.com)