1 (12-ounce) can frozen concentrated lemonade, thawed
1 1/2 cups vanilla vodka
3 cups cold water
2 cups seltzer water, chilled
Mint sprigs, for garnish
1 lemon, sliced into thin rounds
Put the raspberries in a blender or food processor and puree. Using a rubber spatula press the raspberry puree through a fine mesh sieve into a medium bowl. In a large pitcher combine the frozen concentrated lemonade, strained raspberry puree, the vodka, 3 cups of cold water and the seltzer. Stir and pour into glasses filled with ice. Garnish each glass with a sprig of mint and a lemon slice.