JDN, in your case it's an easy one, HealthCuisine.com is wayyy better than HealthyCuisine.com (that sounds a bit odd in fact...) As to plural or singular in your case the plural would just not work (HealthCuisines.com or HealthyCuisines.com .... hmmm ... the singular is a bit better but neither one makes the cut imo) In fact I'm surprised a domain like HealthCuisine.com would even be for sale and/or isn't TMd.... if you get to buy it for a good price and it's clear that would be a smart buy indeed ! I wonder how much they're askin...