Place the Green Candy Melts in a large, microwave-safe, mixing bowl.
Heat in the microwave on high power for 1 minute.
If needed, heat for additional 15-second bursts of 50% power, stirring slowly after each, until melted.
Stir in the Creme de Menthe Liquor or Cream de Methe syrup.
Cover with plastic wrap, and allow the fudge to cool and thicken, stirring every 5 minutes, until the fudge becomes the consistency of frosting. Keep an eye on this, as you don't want the fudge to cool too much and get too thick.
Pipe a big swirl of fudge onto a parchment or wax paper-lined baking sheet.
Add a gold star sprinkle on top of the Fudge Christmas tree.
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