In a medium sized sauce pan, combine raspberries and sugar. Cook over medium low heat until raspberries have broken down and sugar is dissolved, stirring occasionally. Use a berry masher or two forks to mash berries completely.
In another small bowl, squeeze out the juice of two lemons.
Meanwhile, boil 6 cups of water.
Set a strainer over a large bowl. Pour the raspberry mixture through the strainer, pressing on it with a spoon to get all the juices out. Discard what's left in the strainer or eat it with a spoon like I did because it's SO GOOD.
Pour the lemon juice and boiling water into the raspberry mixture and stir to combine. Chill for several hours before serving. Serve with lemon wedges.
I imagine this would be fantastic with a little champagne or sparkling white wine mixed in. Or if you really need something strong, vodka. :)