Fresh Raspberry Sauce

Combine the sugar and raspberries in a small saucepan, and place over medium heat. Cook, stirring occasionally, until the raspberries break down and liquefy, about 10 minutes. Remove from heat, and pass through a fine sieve to remove seeds (if sieve is not fine, you may need to repeat this). Let stand until cool. Refrigerate in an airtight container until ready to use.