In a large bowl, add all ingredients and whisk together, making sure no lumps are left.
To make hot cocoa: In a mug, add 12 oz milk and 2-3 Tbsp of mix. Stir together. It will be clumpy.
Microwave for 1 minute, stir (the mix will dissolve this time), and microwave for 1 minute more. Heat additionally if desired to achieve desired temperature.