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