Grandma Beth Johnston’s Frozen Dessert from when Mom and Dad were first married

Slice lengthwise 1 inch thick:
an angel food cake loaf
three different colors of sherbet from a box
(lime, orange and raspberry)
Layer cake then sherbet, cake then sherbet, cake then sherbet, cake.
Trim finished loaf so edges are even.
Frost entire dessert, top, bottom and sides with:
Whipped cream
Freeze:
To serve slice cross wise so that all three colors of sherbet show.
Garnish with a mint leaf.