For the Last Days of Summer

I found this recipe for lemonade with a twist here:

Vanilla Bean Lemonade

12 oz. can frozen lemonade concentrate; thawed
6 cups cold water
1/3 cup sugar
1/4 tsp. kosher salt
2 vanilla beans, pure vanilla extract or vanilla bean paste to taste
2 large lemons; quartered and seeded

Combine the lemonade concentrate, water, sugar, and salt
in a 3-quart pitcher. Stir until the sugar is dissolved.

I you're using vanilla beans, split the beans lengthwise down the
middle and scrape out the seeds into the lemonade mixture.
Discard the beans. Stir until the seeds have separated,
or add vanilla extract to taste. Let the lemonade
steep for at least 10 minutes. Strain the
lemonade, if desired, through a fine
mess strainer to remove any
vanilla bean residue.

Squeeze each lemon wedge into the pitcher, then add the rinds.
Chill until very cold and serve in tall glasses over ice.
Makes 2 quarts.