Ballyfatten Apple This page first published: Mar 21, 2004 · Updated: Oct 4, 2020 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · A large, round cooking apple with firm white flesh that is dry and slightly tart. Popular in Northern Ireland, especially Londonderry. Cooking Tips Good for applesauce, cooks to a smooth purée. Storage Hints Sweetens up in storage. History Notes First documented in 1802.