In a medium bowl, mix together Greek yogurt, cashew butter, honey, vanilla bean paste, cocoa powder, cinnamon, and butter extract until fully combined.
Spoon 1 1/2 tablespoon portions onto a parchment-lined baking sheet. Flatten each into a disc shape (makes 12-14).
Freeze for about 1 hour, until fully hardened.
Remove from freezer and dip each disc completely in melted chocolate. Place back on parchment paper.
Sprinkle with freeze-dried marshmallows and/or flaky sea salt while chocolate is still wet. Return to freezer until hardened.
Store in a freezer-safe container. Remove 5–10 minutes before serving to soften slightly.