Simmer cherries 5 minutes. Drain and cool. Soften gelatin in cold water. Heat 1 c. cherry juice to boiling. Add softened gelatin and stir until it is dissolved. Remove from heat, cool and chill until mixture thickens to the consistency of syrup. Beat until fluffy.
Beat confectioners sugar and vanilla into whipped cream. Fold into gelatin mixture. Fold in cherries