Essentially Biscoff biscuits are speculoos. Speculoos is the generic name for a type of crunchy, spicy biscuit or cookie that originated in Belgium. Speculoos brand cookies are just slightly different flavoured than the Lotus brand, with a little more cinnamon and nutmeg flavours. Lotus Bakeries originally called their cookies and spread Lotus Speculoos, although they rebranded to Lotus Biscoff in 1986.