In a pint size (wide mouth) glass mason jar mix together the rolled oats and unsweetened cocoa powder. Add the coconut milk, chia seeds, vanilla extract, peppermint extract, pure maple syrup, and salt. Stir until all the ingredients are combined. Place the lid on and store overnight in the refrigerator. In the morning give it a stir and add a little more coconut milk or maple syrup if needed. Sprinkle chocolate chips on and serve.