For fuller, more even coverage on the gold-dusted candies, Zac recommends making a "paint" with gold dust and vodka. Mix 2 teaspoons edible gold pearl dust with about 1/4 teaspoon vodka, adjusting the consistency with more dust or vodka to create a thick paste. Paint this mixture onto the mini peanut butter cups (put them on the end of a toothpick to hold if necessary) and let dry for a few minutes.