Preparation Stir honey and 6 tablespoons hot water in a large pitcher until honey is dissolved. Stir in vodka and lemon juice. Add 2 cups ice cubes. Cover and refrigerate until chilled, about 2 hours. Squeeze lemon balm several times to lightly bruise leaves; add to pitcher. Fill Old Fashioned glasses with ice cubes. Divide cocktail among glasses. Garnish with lemon slices and serve.
Preparation Stir honey and 6 tablespoons hot water in a large pitcher until honey is dissolved. Stir in vodka and lemon juice. Add 2 cups ice cubes. Cover and refrigerate until chilled, about 2 hours. Squeeze lemon balm several times to lightly bruise leaves; add to pitcher. Fill Old Fashioned glasses with ice cubes. Divide cocktail among glasses. Garnish with lemon slices and serve.