The secret ingredient in this mix is the mini chocolate chips, which melt when combined with the boiling water and give the cocoa an extra-rich flavor. The recipe makes enough for four gift-size portions, each of which can be measured into a small plastic bag and tucked into a cup or mug filled with mini marshmallows, candy stick stirrers, and a spoon. Wrap each filled gift cup in cellophane and don’t forget to include a tag with the following instructions: “Spoon 3 or 4 generous tablespoons of cocoa mix into your cup (depending on the size), add boiling water, and stir well.”