Despite R.E.M.'s protestations, I have found a reason to go back to Rockville.
Most people don't find themselves in the situation I was in: I'd already sampled ten ice cream flavors and was forcing myself to exercise restraint to keep from sampling more. Such wanton accumulation of one-time use plastic spoons, tsk tsk...and it was Earth Day. But with so many interesting flavors at the Jamaican-owned, tropical-themed York Castle, it was easy to fall into that deliciously indulgent trap, especially when the young man behind the counter was so friendly and enabling. (He was great! We talked about hockey, traveling and more!)
Adventurous eaters will want to explore the handful of totally unfamiliar flavors like Caribbean cherry, lucuma, and mamey sapote. Other exotic flavors are recognizable, but not usually as ice cream, like lychee, guava and soursop. Then some are more familiar, but are far from being same old, same old when York Castle makes them: the milkfat in their mango ice cream doesn't dilute the intensely authentic flavor and when they make ginger ice cream, it is spicy! York Castle also features a secondary list of flavors from the ice cream canon, which I did not even sample. (There's that restraint I was talking about.)
I somehow narrowed my selection down to four flavors. First ginger, which sizzled in my nasal cavity. Next was passion fruit, as tart as hoped. Then came Caribbean cherry, a berry flavor (possibly my Puerto Rican favorite, acerola) whose sweet tartness cut through the milkfat. And last was mango, whose texture and taste were like biting into a hunk of the namesake fruit. Usually better as gelato or sorbet, this was the best mango ice cream I've ever had. (I was sorry to see that they were out of lychee, which serves as yet another reason to go back.)
If you ever find yourself in Rockville, Maryland, or if you are in D.C. and feel like a trip to the 'burbs, don't miss York Castle Caribbean Ice Cream. They may not have a website or an official Facebook page, but you can taste how they put those dollars into the product instead of marketing.