Stir together the Riesling, mango nectar, eau de vie, limes, nectarines and oranges in a pitcher. Cover and refrigerate for at least 2 hours and up to 24 hours.
Serve over ice in white wine glasses and top with a splash of club soda.
Gabriele shares his family recipe for a delicious summertime libation.
Easy, Elegant Holiday Appetizer Recipes