Combine all the ingredients for the hot cocoa in a large bowl and whisk together until well incorporated. Divvy the mixture between four 8 oz. jars and top with add-ins. Alternatively, fill six gumball tubes with the mixture, or in twelve tubes, a mixture of cocoa mixture and add-ins.
Add a label to jars or tubes with the instructions.
For jars of cocoa: For one serving, add 2-3 tablespoons cocoa mix with 6 ounces of hot water or hot milk..
For tubes of cocoa: For one serving, add half the tube of cocoa mix to 6 ounces of hot water or hot milk.
For tubes of cocoa with mix-ins: Add entire contents of tube to an extra-large (15 oz.) mug and fill with hot water or hot milk.