Persian/ Middle Eastern grocers that sell nougat, candied orange peel, dried fruit, etc.
In Rockville, there is Sam's Market at Ritchie Center ( Rockville Pike & Wooton Pkwy) and Yekta Grocery (on Rockville Pike, across from Congressional Plaza).
Yekta Deli Imported Grocery
1488 Rockville Pike, Rockville, MD 20852
Sam Cafe & Market
765 Rockville Pike, Rockville, MD
Also Mediterranean Bakery on South Pickett St. in Alexandria, and Aphrodite in Baileys Crossroads, a door or two down from Rabieng. I can't compare to Yas or Assal, but both of them have a better selection than Lebanese Butcher of the ingredients you seek. (Lebanese Butcher, on the other hand, has wonderful meats.)
There are several:
Assal Market in Vienna, VA
Yas Market in Vienna, VA
Lebanese Butcher in Falls Church/Annandale, VA
There is also a wonderful strip mall in Bailey's Crossroads on S George Mason Drive (right behind Skyline) that is chock a block full of Middle Eastern stores, cafes, and the like. You're sure to find what you need there. Be warned that parking is a nightmare.