What you'll need
1 11.5-oz. can frozen concentrate strawberry or any berry mix juice
24 raspberries or 8 strawberries, sliced (optional)
2 quarts water
1 1/3 cups sugar (or more, to taste)
1 1/3 cups fresh lemon juice
8 lemon slices
8 mint sprigs
How to make it
Pour the juice concentrate and 1 can of water into a pitcher. Mix to combine, then pour the juice into two ice cube trays, adding raspberries or sliced strawberries if you wish. Freeze.
Combine the 2 quarts of water and the sugar in a medium saucepan. Bring to a boil and stir to combine. Reduce to a simmer and cook until the sugar is dissolved, about 1 to 2 minutes. Remove from heat.
Strain the lemon juice through a fine sieve into the sugar syrup. Chill. Slit each lemon slice once, from center to rind, then press the slits onto eight glasses. Fill each glass with 3 berry ice cubes and the lemonade. Garnish with a mint sprig.
Makes 8 glasses.