Clean the springform pan and line it completely with plastic wrap.
Slice the cooled cake into two even layers.
Place one layer into the prepared pan.
Let the ice cream soften until scoopable.
Scoop different ice cream flavors over the cake layer, spreading evenly.
Add spoonfuls of cherry jam and gently swirl into the ice cream.
Top with the second cake layer.
Freeze for at least 6 hours, preferably overnight. This Berry Ice Cream Cake develops the best texture after an overnight freeze.