In a mixing bowl, combine the rolled oats, milk, chia seeds, maple syrup, and vanilla extract. Stir well to mix all ingredients thoroughly.
If using yogurt, mix it in at this stage for added creaminess.
Divide the mixture evenly into the two jars or containers and seal them with lids.
Refrigerate the jars overnight (or at least 4 hours) to allow the oats to soak up the liquid and soften.
In the morning, add your choice of fresh fruit and nuts or seeds on top before serving.
Stir the oats well before enjoying!
You can customize your overnight oats by adding spices like cinnamon or cocoa powder.
Try different toppings such as nut butter or dried fruits for added flavor.
The oats can be stored in the refrigerator for up to 3 days, making them a great meal prep option.