And this phrase is found in the 'food' category
That's duolingo for you
Arabic is ONLY used for the language; anything else is either Arab or Arabian, depending.
Oh, and for numerals. Arabic numerals; the Arabic language. That's all.
Not sure why it doesn't allow "Arabian." "Arabic house" just sounds weird.
What is an Arabic house?
Can I eat this Arabic house? Is it best served with cold chicken?