Add oats, brown sugar, chia seeds, cinnamon, vanilla, and milk to a jar.
Secure the lid and shake well to combine.
Refrigerate overnight (or at least 4 hours) before serving.
Notes
*Enjoy as-is or add more toppings! See a list of ideas in the post above.
The listed ingredients make an individual serving in an 8-ounce mason jar. To make several servings, I recommend scooping the ingredients into each jar, rather than making it in a big bowl and portioning it out.
This liquid ratio gives you nice thick, soft oats. If you prefer your oats thinner, add more milk while preparing the oats or right before serving.
If you want to add a lot of toppings to your oats, you may want to use a 16-ounce jar to allow for more space.
Adding nuts when preparing the jars will give you soft, slightly chewy nuts. If you prefer crunchy nuts, add them right before serving.
You can make these overnight oats higher in protein by stirring a scoop of protein powder into the mixture.
In the fall, try adding pumpkin puree and pumpkin pie spice for a yummy fall overnight oats recipe!