Add the rolled oats, cacao powder, cinnamon, and chia seeds to a 16-ounce mason jar. Give the ingredients a couple of stirs, so everything is evenly distributed.
Then stir in the unsweetened coconut milk and vanilla extract. The milk should be completely covering the oats.
Add the cherries to the top of the oats, tightly place the lid on, and refrigerate overnight or for at least 8 hours.
In the morning, stir all the ingredients together. If you’re using frozen cherries, then it’s likely they released extra juices while thawing, so you won’t need to add any additional liquid to loosen up the oats. However, if the oats seem thick, then add a splash of coconut milk until you get the consistency you want. Give the oatmeal a taste.
Sprinkle with cacao nibs.
If you need extra sweetness, then stir in 1-2 teaspoons of pure maple syrup.
You can eat the oatmeal out of the mason jar or pour it into a bowl.