Watermelon Bellinis

This drink is the highlight of the classic Bellini, a post-war cocktail of white peach puree and champagne, first made at Harry's Bar in Venice. Freezing the watermelon before turning it into a puree gives the drink a slightly mushy consistency. If you prefer a smoother texture, just chill the watermelon. Serve in champagne glasses.
Combine watermelon, 2 tablespoons sugar, juice, and 1 cup wine in a blender; whisk until smooth. Pour about 1/3 cup of the watermelon mixture into each of the 8 glasses. Pour 1/4 cup of the remaining wine into each glass. Garnish with lemon zest if desired. Serve immediately.