Put the lemon juice in a pitcher.

Mix the sugar and 1 1/2 cups water to make a syrup, stirring well until sugar dissolves.

Add the sugar syrup to the lemon juice and top with 4 cups water.

Taste to make sure it's sweet enough for you, then add the raspberries. (Keep in mind that the raspberries are tart, so be sure to sweeten enough!)

Stir the lemonade, then chill in the refrigerator.

Fill glasses with ice cubes and top them off with the lemonade.

*Makes about 2 1/2 quarts.*