In a little mason jar or tup, combine all of the first set of ingredients. Mix well to ensure oats are covered in yogurt/nut milk base.
For the blueberry chia compote, throw those ingredients into a small sauce pan on medium heat. The blueberries will begin to burst & use a wooden spoon to mash them. Increase the heat to medium-high until everything comes to a boil. Cook (stirring often) for about 5-8 mins. Allow it to cool & thicken. Taste test and determine whether it needs more sweetener.
Add 1 tbsp of the blueberry chia compote into the overnight oats container & stir.
Leave the jar or tup in the fridge overnight or for at least 4 hours.
Right before serving, top with 1 tbsp fresh blueberry chia compote, more fresh blueberries & crumbled walnuts.
