One of Brazil's most famous ice cream shops, though with a terribly misleading name: there are actually 150 flavors here, including caipirinha (made with cachaça sugarcane liquor – you must be 18 to purchase!) and beer, plus loads of Brazilian fruits and more classic options. There's another a branch in Mucuripe.
Don't let anyone tell you one scoop of tapioca, one scoop of açaí isn't the perfect combination!