From 'The Ultimate Dessert Book' by Linda Lewis. This spumoni is a lovely semi homemade version of the classic Italian dessert. Rich and decadent. A wonderful ice cream to serve at Christmas, or following an Italian feast. Enjoy! Note: Spumoni is at its best when served slightly softened, so transfer from freezer to refrigerator about an hour before serving. Cook time is freezer time. Makes about 1 1/2 quarts.