The chai spice and eggnog don't come in until later, as they're added to the icing, along with powdered sugar, more vanilla, and milk. It's worth noting that these cookies aren't a quick recipe ...
For the rim: In a small bowl as wide as the glass, whisk together the powdered sugar and half-and-half. (The icing should be very thick.) Place the sprinkles on a small plate. Dip just the rims of ...