How to Make It
In a large pitcher, combine the lemon juice and sugar and stir until the sugar is dissolved. Add the wine and chill for about 1 hour. Add the lemon slices and serve in punch glasses.
The punch can be doubled.
The superfine sugar called for in this cocktail is just regular granulated sugar with unusually small crystals. Easily dissolved into cold liquids, superfine sugar is perfect for making mixed drinks extra smooth. If you can't find superfine sugar, you can make it at home by grinding granulated sugar in a food processor for 30 to 40 seconds. Wait a few seconds before opening the food processor lid so the sugar dust can settle.