Mix Base: In a medium bowl, combine the Greek yogurt, peanut butter, and honey. Stir until the mixture is completely smooth and thick.
Melt Chocolate: Melt the dark chocolate in the microwave in 20–30 second intervals. Stir until smooth and let it cool slightly (it should still be pourable).
Create Swirl: Add small spoonfuls of the melted chocolate into the yogurt mixture. Use a toothpick or knife to gently swirl the chocolate to create a marbled effect—do not over-mix!
Shape: Spoon the marbled mixture into silicone molds or drop rounded portions onto a parchment-lined tray.
Freeze: Place in the freezer for at least 2–3 hours, or until the bites are fully firm.
Serve: Remove from molds and enjoy immediately. Keep leftovers in an airtight container in the freezer.