In a mason jar, add in the rolled oats, milk, greek yogurt, and chia seeds. Mix well together. Add sweetener, if you'd like!
Next, add in your scoops of biscoff spread and mix everything again once more! The goal is ideally to have ripples of biscoff spread throughout.
Lastly, add 1-3 crushed biscoff cookies either right before you eat it, within the mixture, or half and half.
Store in the fridge overnight or minimally for 2 hours with a lid.
Eat and enjoy!