In a large bowl, whisk to combine the cocoa powder, sugar, and salt.
Transfer the mix to a 16-ounce jar.
Top with chocolate chips, then the marshmallows. Do not mix.
Place the lid on the jar. Use twine to attach the printable gift tag, if desired.
Notes
The mix will keep for up to 3 months if stored in an airtight container at room temperature. Each jar has enough mix to make 4 cups of hot chocolate.To prepare hot cocoa:
Mix up the ingredients in the jar to combine everything.