Add all ingredients to a food processor (7 to 14 cup size).
Pulse until everything is finely ground, about 30 to 60 seconds.
Pour mixture into an airtight container and keep up to 3 months (or sooner if ingredients expire before then).
To prepare the hot chocolate drink: Heat 1 cup milk for 1 serving (or 2 cups for 2 servings) in a small saucepan over medium-low heat.
Once mixture bubbles lightly at the edges add 1/4 cup hot cocoa mix for 1 serving (or 1/2 cup mix for 2 servings). Cook and whisk constantly bringing to a gentle simmer. Let simmer about 20 seconds while whisking.
Pour into a mug, let it cool slightly before serving. Top as desired (great choices are whipped cream or marshmallows).
Notes
Tip: If preparing this for someone who may prefer a milder chocolate flavor you can use 3 Tbsp mix instead of 1/4 cup. For darker flavor include a few extra tablespoons of cocoa powder in the mix.
Nutrition information is just for 1/4 cup mix. Additional calories will be added based on the milk used to prepare it.