01METHOD
As this is a simple dessert to make, with little cooking time, there are only a few key things to remember. First, if you're making it from scratch, make sure that the custard, if you are making one, is lump-free — sieve it, if need be, while it's still warm. If using store-bought ice cream, spread it with the help of a moistened spoon that you repeatedly wet in water, so it doesn't get stuck to the ice cream, which is easier to spread that way. When preparing the mold, wrap the insides with cling film or parchment paper for easier unmolding. If you've forgotten to put them, just run a hot knife around the edges, or dip the container with the spumoni shortly in warm water.
02VARIATIONS
The classic flavors, at least in Italy, include chocolate, hazelnut, stracciatella, fior di latte, and pistachio, but using other flavors is not a crime if they blend nicely with other flavors and ingredients. Besides liqueur, sponge cake, or in some cases, Savioradi, that is traditionally at the center of the dessert, can be flavored with coffee. Also, in Italy, spumoni is typically assembled as a single-serving dessert, usually a dome-shaped or a cylinder-shaped one. In the States, however, spumoni is typically molded in a loaf pan and then cut in individual slabs for serving.
03SERVING
In Italy, it is typically served as a summer dessert, perhaps with a cup of coffee after lunch, while in the States, in the wintertime, butter cookies are the common accompaniment. Aside from that, you can decorate and serve it whichever way you like, with chopped/crushed nuts, various flavored sauces, or fruit.