Noun phrase
/ˈjelo ˈðulθe/
Hielo dulce translates to "sweet ice" in English. The phrase is not very common in Spanish, as it is a literal description of a type of ice that is sweet in taste. This term could be used either in a written context or in oral speech, although it might be more commonly encountered in written recipes or specialized contexts.
Vamos a preparar un postre delicioso con hielo dulce.
We are going to prepare a delicious dessert with sweet ice.
En verano, me encanta comer hielo dulce para refrescarme.
*In the summer, I love to eat sweet ice to cool down.
The phrase hielo dulce does not hold any idiomatic meanings as it is a straightforward description of a sweet type of ice.
The etymology of hielo dulce comes from the combination of two Spanish words: hielo which means "ice" and dulce which means "sweet".