3 cups nonfat dry milk powder
2 cups powdered sugar
1½ cups cocoa powder (Dutch-processed preferred, but regular okay)
1½ cups white chocolate chips (or chopped white chocolate)
¼ teaspoon salt
1. Whisk together all ingredients in a large bowl. Working in two batches, pulse the ingredients in a food processor until the chocolate is finely ground. Store in an airtight container for up to 3 months.
2. To make hot cocoa, put 1/3 cup of the cocoa mix in a mug and stir in 1 cup of hot milk. Top with whipped cream or miniature marshmallows.