Address: 755 Flatbush Avenue, Brooklyn, NY 11226... Phone: +1 718-513-6084... Serving Caribbean- American dinner, brunch and cocktails. Mangoseed opened in 2008, and ever since, it has been a New York City Favorite for Jerk Chicken, Jerk Salmon, waffles, Rum Punch and Margaritas. The cozy and inviting atmosphere of Mangoseed is perfect for a date night, a family get together, or time with friends. For large parties and private rentals, Mangoseed has a plush speakeasy with a separate bar, that is hidden behind it's main dining room. The restaurant is steps from Prospect Park, and close to Kings Theater, and the Brooklyn Botanical Gardens.