Blackberry and Apple Crumble Cake

Drain thawed berries and reserve juice. Measure juice, adding water if necessary, to yield ~ cup. Thoroughly combine sugar and cornstarch with liqueur or orange juice; blend in raspberry juice until smooth. Bring to a boil over medium heat, stirring constantly; boil 2 minutes. Combine 1/2 cup hot glaze with drained berries and spread over cheesecake; slowly pour remaining glaze back and forth over fruit, forming a shiny glaze. Yield: Enough to glaze 1 cheesecake (great on frozen commercial cheesecake).