Mash half of the strawberries with a potato masher or fork. , In a blender, combine remaining strawberries, water, sugar, flour and orange zest; process until smooth. Pour into a 2-qt. saucepan. Bring to a boil over medium heat; boil for 2 minutes, stirring constantly. Add mashed strawberries. Reduce heat; simmer, uncovered, for 10 minutes, stirring constantly. Chill for at least 1 hour. , Stir in cream. Cover and chill overnight. Serve with mint and strawberries if desired.