Mix the oats

• Combine the rolled oats, milk, Greek yogurt, chia seeds and maple syrup in a bowl.
• Stir until evenly combined and slightly thickened.

Layer in jars

• Spoon half of the oat mixture into each jar.
• Add a layer of Biscoff spread, then top with the remaining oat mixture.

Chill overnight

• Cover the jars and refrigerate until the oats are soft and set.

Finish and serve

• Top with a spoonful of Biscoff spread and the crushed Biscoff biscuits.
• Serve cold.