In a wide-mouth pint-sized mason jar or other storage container, add all of the ingredients.
Seal the lid on the container, then shake about 10-15 seconds until all the ingredients are evenly combined.
Place in the fridge overnight, or at least 2-3 hours.
In the morning, give your oats a quick stir before eating. Don't forget to top with anything you'd like to add for taste and/ or nutrition!
Video
Notes
You may need a little more or less milk based on your protein powder (some can make the overnight oats thicker than others) and based on how thick you prefer your overnight oats.*For a vanilla option, use a vanilla protein powder, omit the cocoa powder, and add 1 teaspoon vanilla extract.*Nutrition information does not include toppings and will vary based on type of protein powder and milk used.