This receipt appears to have originated, or been popularised, by work at the WWII Tottenham Salvage depot. Halnan & Garner's 1944 'Principles and Practice of Feeding Farm Animals' has; "In the process of cooking the waste..sets to a firm..‘pudding' which finds a ready market for feeding to pigs and poultry. Since this pudding was first produced in..Tottenham..such prepared food is known as ‘Tottenham Pudding’." (OED)
Queen Mary inspects the ingredients for 'Tottenham Pudding'
at the Tottenham Salvage depot, 1940
Occasionally confused with Tottenham Cake