- 2 to 2-1/2 tablespoons unsweetened cocoa powder (see notes)
- 3 tablespoons granulated sugar
- 3 tablespoons hot water
- 1/16 teaspoon (a pinch) kosher salt
- 2 cups milk (any fat content will produce good results; a non-dairy milk of choice may be substituted, as needed)
- 1/2 teaspoon vanilla extract
- Optional for serving: mini marshmallows or whipped cream