Grebble or under any of its various spellings doesn’t look like this. This picture looks like French beignet. If this is actually made from a grebble recipe, it was corrupted into this form for commercial purposes. Grebble is made from a soft pliable dough (I can provide recipe) that must be refrigerated six hours or overnight. You break off a part of the dough slightly hardened by fridge, cut into approximately four inch rectangles with two slits, pull corners through slits, and drop into hot oil. This exposes more sides, resulting in a lighter pastry. It only takes a minute to puff up and you flip to reach golden color on all sides. You can then shake it in a paper bag with sugar.