"It was to Mrs. Hudson's biscuits that Sherlock Holmes turned to break his three day fast in The Adventure of the Dying Detective." Rosenblatt's book tells me, and that was enough of an endorsement for me. Not to mention, "when the imposing figure of Thorneycroft Huxtable collapsed from hunger and fatigue on the hearthrug at Baker Street, Mrs. Hudson's biscuits and a glass of milk brought him back to life."