Add all the ingredients to a sealable jar or bowl and give it a good stir until it's well combined.
Let it soak in the fridge, sealed, for at least 6 hours. This will yield a creamier consistency.
Give it a good stir again immediately before eating.
Top your overnight oats with additional diced pineapple and shredded coconut if desired.
Or keep refrigerated for a quick breakfast for up to 3-4 days
Enjoy!