Wash cranberries, pat dry and place in medium sized bowl.
Warm syrup in saucepan; do not overheat—if syrup is hot it will pop the cranberries. Remove from heat and gently coat cranberries. Cover bowl with lid or cellophane and refrigerate overnight.
Drain cranberries of excess syrup. Line baking sheet with parchment paper. Place sugar in large wide bowl.
Add cranberries in ½ cup increments and thoroughly coat in sugar; place on cookie sheet and separate. If sugar gets too damp, replace with fresh sugar and continue coating cranberries until finished.