To a mason jar or small bowl with a lid, add almond milk, chia seeds, peanut butter, and maple syrup (or other sweetener) and stir with a spoon to combine. The peanut butter doesn't need to be completely mixed with the almond milk (doing so leaves swirls of peanut butter to enjoy the next day).
Add oats and stir a few more times. Then press down with a spoon to ensure all oats have been moistened and are immersed in almond milk.
Cover securely with a lid or seal and set in the refrigerator overnight (or for at least 6 hours) to set/soak.
The next day, open and enjoy as is or garnish with desired toppings (see options above). See more flavor/topping suggestions in the blog post above!OPTIONAL: You can also heat your oats in the microwave for 45-60 seconds (just ensure there's enough room at the top of your jar to allow for expansion and prevent overflow), or transfer oats to a saucepan and heat over medium heat until warmed through. Add more liquid as needed if oats get too thick/dry.
Overnight oats will keep in the refrigerator for 2-3 days, though best within the first 12-24 hours in our experience. Not freezer friendly.
*Overnight oats adapted from Eating Bird Food (one of my many girl crushes). *Prep time reflects preparation and overnight soaking. *The first, fifth, and last images reflect two servings (double ingredients) with additional chia seeds and peanut butter. *Nutrition information is a rough estimate calculated with fortified almond milk and without optional ingredients.