In a medium mixing bowl combine Greek yogurt, cashew butter, crème de menthe syrup, honey, vanilla bean paste, and a pinch of salt. Stir until fully combined and creamy.
Line a baking sheet with parchment paper. Scoop the mixture into 12 portions (about 2 tablespoons each) and flatten each portion into a disc about ½-inch thick.
Place the discs in the freezer for about 1 hour or until fully firm.
Melt the dark chocolate using the microwave or double boiler method. Stir until smooth.
Remove the frozen discs from the freezer. Using a fork or dipping tool, coat each disc in melted chocolate, allowing excess chocolate to drip off. Place back onto the parchment paper and sprinkle with flaky sea salt if desired.
Return the coated moose paws to the freezer until the chocolate shell is fully set.