In summary, Biscoff is a branded version of speculoos, but both refer to cookies with a similar spiced flavor profile. Speculoos: A traditional spiced cookie from Belgium, typically made with a blend of spices like cinnamon, nutmeg, and cloves. They’re known for their crisp texture and caramelized flavor. Biscoff: A brand name for speculoos cookies produced by Lotus Bakeries. Biscoff cookies are essentially speculoos but branded and marketed specifically by Lotus. The term "Biscoff" is often used to refer to the cookies and the cookie butter made from them.