There are all sorts of sweet shops and the like in Midtown....here are two just a couple of blocks away--the upscale 5th Avenue Chocolatiere and the Heavenly Delights shop..
Heavenly delights is more for kids and average people...did not check all that closely but probably does not pay all that much attention to current preoccupation with "healthy choices" ( low fat, no sugar added, etc.)--but I am not sure because I did not really look as I said.
Understand that there are all sorts of small chocolatiers all over the U.S. now...saw a contestant on "Wheel of Fortune" from Oregon ( who looked exactly like some hip guy from the late 1960's...the hair and mustache were perfect replicas) who started his chocolate shop in his basement and now has a thriving business there.
Food experts are divided on benefits/dangers of chocolate, of course, and disapprove of sugar more and more...( latest TV show I saw on it had this one doctor raving on how "all sugar --even from honey-- is poison!") Nobody knows where the food police will strike next....