Of the notable jerk places, I've tried Peppa's, Boston Jerk City, Exquisite Delight (the one on Church), and Jonaki Caterers Restaurant (formerly known as Steve's Utica Jerk/Chicken Center). I like Exquisite the best (for both food and vibe). McKenzie's is next on my list.
-Jeremy, Founder http://www.dinevore.com
Peppa's Jerk Chicken
738 Flatbush Ave, Brooklyn, NY 11226
361 Utica Ave, Brooklyn, NY 11213
Boston Jerk City
1344 Utica Ave, Brooklyn, NY 11203
2847 Church Ave, Brooklyn, NY 11226
324 Utica Ave, Brooklyn, NY 11213
Upscale restaurant, dinner only
In addition to non dairy Ice Cream they serve veggie carribean (Ital) meals. No tables or restroom, counter service only.
Scoops Ice Cream Parlor 624 Flatbush Ave, Brooklyn, NY
Beyond that there are a number of Roti and jerk places, many posts already.