In a jar or container, combine the rolled oats and chia seeds.
Pour in the milk and yogurt. Stir well to combine, ensuring no clumps of chia seeds or oats.
Add sweetener to your desired level of sweetness and stir again.
Cover the container and refrigerate for at least 4 hours, or preferably overnight.
In the morning, stir the oats and add any desired toppings like fresh fruit, nuts, or seeds before serving.
Notes
Adjust the amount of milk and yogurt to achieve your preferred consistency. This recipe is highly customizable with various toppings and flavor additions.