In the pitcher of a blender, combine all ingredients. Blend on high until very smooth.
Pour into pint-size Mason jars. Seal lids and stash in fridge for up to a week.
To reheat in microwave: remove lid from jar, cover jar loosely with a paper towel, and microwave on high for 2-3 minutes—stirring every minute—until hot.
To reheat on stovetop: pour soup into a small saucepan. Head over medium heat, stirring occasionally, until hot throughout—about five minutes.
Notes
If your coconut milk is chilled, it might have separated into solids and liquids. That's okay! Just put everything in the blender and blend away. Your final soup might look like it's curdled—but that's just the tiny bits of coconut cream. When you heat the soup, they'll melt and make for a smooth and creamy soup.