Adapted from keyingredient.com
cup fresh meyer lemon juice, chilled, about 8 lemons
cup chilled vodka
cups chilled prosecco or other sparkling wine, chilled
Combine first 3 ingredients in a microwave safe liquid measuring cup. Microwave on high for 2 1/2 minutes; stir until sugar dissolves. Let stand for 10 minutes; discard rosemary. Chill Combine the sugar mixture, juice, vodka, and prosecco, stirring gently. Serve immediately.