I thought the spelling with two o's must be wrong because moor is like moorland, and nothing to do with wanting more of something.
Surely it should be 'moreish' because that's based on the word "more:
For example:
http://dictionary.cambridge.org/dictionary/british/moreish"(of food) having a very pleasant taste and making you want to eat more
These peanuts are very moreish, aren't they?
(Definition of moreish adjective from the Cambridge Advanced Learner's Dictionary)"
But a search of google suggests 'moorish' is more popular, finding more than twice as many hits as 'moreish'.
I don't think it's 'morish' either. At google, that just prompts a spelling correction.
Anyway, it's the acid test for me. Perhaps we ought to have star rating on the recipes here, based simply on how moreish the dishes are.