Mix all the dry ingredients in a bowl and set aside.
Add Lotus Biscoff spread, butter, white and brown sugar in the mixing bowl and mix using medium speed until you obtain a creamy mixture.
Then break and egg into the bowl and also add a teaspoon of vanilla extract.
Mix again to blend.
Then pour in gradually the dry ingredients. Mix just enough to well combine everything.
Move the bowl to the fridge to chill for half an hour. Keep it covered.
When time is up, start heating the oven to 175° Celsius (350° F)
Make small cookies from a tablespoon each and place them 5 centimeters (2 inches) apart from each other. You might need to use to trays.
Bake for 8-10 minutes until the cookies start to brown and the sides start to become firm.
Remove from the oven and let rest for 10 minutes before serving and eating.