Let the cake cool completely before frosting.
For the cherry pudding:
In a small saucepan, heat the cherry juice, kirsch, cornstarch, and sugar over medium heat until thickened and translucent.
Remove from heat and stir in the cherry or strawberry jam.
Let the cherry pudding cool completely before assembling the cake.
For the cream cheese frosting:
In a large bowl, beat together the cream cheese and vanilla extract until smooth and creamy.
Fold in the whipped cream until just combined.
For the cherry frosting: