"Al" is A+IL (preposition + article). You will find them pretty often in Italian, it's barely impossible to say anything without things like AL, NEL, SUL, DEL... :/

At the beginning of the lesson for food on the main screen, they give tips/notes:

Dish di ingredient: the ingredient is the main or only component of the dish, e.g. "succo di limone" (lemon juice). In this case the article is never used before the ingredient. Dish con ingredient: the ingredient is a visible component of the dish or used as garnish, e.g. "fragole con panna" (strawberries with cream). In this case a definite article can be used before the ingredient. Dish a ingredient: the dish has been flavored with the ingredient, or tastes like the ingredient, e.g. "gelato al cioccolato" (chocolate ice cream). In this case the definite article is mandatory before the ingredient, forming an articulated preposition with a.

I just put "Crema cioccolato" but it wasn't right.

I hardly ever heard this in class, but for sure my professor didn't teach it. I guess it was one of those things we were meant to pick up.

Cream in english is panna in Italian. I don't think crema is the correct translation.

Yes , panna is cream, cream of milk. Bye

According to my dictionary, cioccolata is chocolate only in the the sense of a drink - I am drinking (hot) chocolate.

Chocolate you eat is cioccolato.

I think it just depends on the sentence. No one would ever point out whether it is an 'o' or 'a' in an actual Italian conversation. Don't worry :)

The same problem

yes

google translator says it's cioccolato

Yes. Custard in italian is crema pasticciera, but it's commonly shortened. crema can also mean "ointment". To disambiguate, you can use pomata. panna means "cream", and when its whipped, it's montata.

they accept typos but only if there is a real typo. "latto" is the translation for "lacto". maybe thats the reason (I had it with another word but can´t remeber which :) )

I think they only accept typos if there's only one mistake.

Ciocolatto has two mistakes - it should be double c and not double t.

Not if your typo spells a different word or is off by more than a letter.

Because it is "la crema", crema is feminine

cioccolato is not an adjective, so it doesn't agree in gender and number.

"Al" is a preposition and "la" is the italian feminine pronoun. In other words, is the same difference between "of" and "the"

di would imply "made of", whereas al implies "tasting like". In this case, a cream made of chocolate tastes like chocolate, so you still convey the meaning... However, al is the commonly used preposition.

It is chocolate cream because it's "crema" al cioccolato. Chocolate ice cream will be gelato al cioccolato (ice cream = gelato, cream = crema)

Most likely because it's a foreign language, I'd guess.