Make sure you include the fada in this one.
While it might say in Irish "Is maith liom cáca milis," it does not say it in English. All it says is "I like cake," leaving out the word for sweet which is milis in Irish.
CÁCA MILIS - Irish Language Short
(Actually slightly disturbing, but good. Fair warning.)
Would "ciste milis" be correct? It is what I learned, and "ciste" is given as a hint.