01 - In a medium bowl or jar, combine rolled oats, milk, Greek yogurt, 2 tablespoons of Biscoff spread, maple syrup, vanilla extract, and a pinch of salt. Stir thoroughly until well mixed.
02 - Cover and refrigerate overnight, or for at least 4 hours, until the oats are soft and creamy.
03 - In the morning, stir the oats well. If the mixture is too thick, add an extra splash of milk.
04 - Top with crushed Biscoff cookies, fresh berries, banana slices, and a drizzle of melted Biscoff spread, if desired. Serve chilled.