Dulce de leche can be used any time a sweet caramelized sauce is appropriate. You can spread it on toast, fill pastries, flavour ice cream, float it on hot or cold drinks or eat it by itself as a...
Duel-seh deh leh-cheh
Mmm. Caramel candy. My high school Spanish says "DOOL-say lay LAY-chay".
It is a caramel made from sugar and milk that originated in Argentina.
You can buy Dulce de leche in most of South America, i highly recomend Argentinian, is tasty :)