Keep a batch in the freezer for a last minute dessert or summertime treat.
1. In a medium saucepan combine cream, syrup, water and cocoa powder. Bring to a boil over medium heat. Reduce heat to low; cook, stirring occasionally, 5 minutes. Remove from heat and stir in vanilla. 2. Pour mixture into two ice cube trays. Freeze 2 hours. 3. Before serving transfer cubes into a food processor. Process until mixture is finely chopped and slushy.