- 2 lemons
- 2 limes
- 12 fresh mint sprigs
- 1 1/2 quarts chilled sparkling mineral water or seltzer
- 1/4 cup elderflower concentrate, or to taste
- 2 cups ice cubes
- Thinly slice lemons and limes and crush mint. In a pitcher stir together lemons, limes, mint, and remaining ingredients. Serve cooler over ice in tall glasses.