Add the unsweetened coconut milk, honey, vanilla extract, and water in a medium saucepan and bring to a boil over medium-high heat.
Stir in sea salt and quick oats and bring it back to a boil, stirring constantly. Reduce the heat to low and cover.
Simmer on low for 5 minutes, lifting the lid and stirring every minute or so. Add in ½ cup blueberries, cover, and simmer for another 5 minutes, or until the oats are cooked through and the mixture is super creamy.
Remove the pan from heat and add in the remaining ½ cup blueberries and brown sugar.
Cover and allow to sit for 5-10 minutes to thicken up.