The answer is, unfortunately, no. Biscoff is made with cookies which are made with wheat flour. As Biscoff company stated, there are no gluten-free products produced by the Lotus company as wheat flour is one of the main ingredients in the cookies and the Biscoff spread. So, if you see a Biscoff cake or cookie recipe recommending that you use gluten-free flour to make a gluten-free version of the recipe (which I have seen), keep in mind, they probably forgot that the spread contains gluten by default.
Can Gluten Intolerant People Still Enjoy The Speculoos Flavors?
Yes, you can! Speculoos flavor is created through the caramelization process of sugar plus cinnamon. So, to make a gluten-free Biscoff spread you will need to make gluten-free Lotus cookies first, then use them to make a gluten-free Biscoff spread.
Keep in mind, that there is a difference between Speculoos and Speculaas cookies. Speculaas flavor is created by a few different spices while Speculoos gets its unique taste from caramel and cinnamon.