I barely have time to post this, but don't want to forget what I did.
Combine 1/2 cup of water and 2 cups of sugar until dissolved over medium heat. Add a pint of raspberries and stir till it boils. Let it boil for 5 minutes (stirring often), then line a strainer with cheesecloth and let it drain for an hour. Done. It made about 2 cups.