New answers tagged comida
In Chile we say simply crema for any creamy coverage or filler.
I'm afraid the there is no single term to convey icing. Actually if it is filling something (like twinkies) is called relleno. Merengue and turrón won't apply here. If you don't want to go with glaseado, which seems to be the best option, you could make do with "baño" or "cobertura" de chocolate, vainilla, etc.
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