Start by grabbing a medium-sized mixing bowl. Pour in the rolled oats, coconut milk, chia seeds, vanilla extract, and your choice of sweetener (if you're using any). Stir these ingredients together thoroughly until everything is well combined and the oats are fully coated in the milk.
Next, it’s time to add the stars of the show. Gently fold in about half of your diced mango and all of the shredded coconut. Mixing them in at this stage ensures that every bite is packed with tropical flavor and texture, rather than having them all sit at the top or bottom.
Divide the mixture evenly between two jars or airtight containers. Top each serving with the remaining diced mango. Seal the containers tightly and place them in the refrigerator to chill overnight, or for a minimum of four to six hours. This is the magic step where the oats soften and absorb all the delicious flavors.
When you're ready for breakfast, take the jars out of the fridge. Give the oats a good stir to recombine everything. If you prefer a creamier, thinner consistency, feel free to add another splash of coconut milk. Your delicious, tropical breakfast is now ready to enjoy.