Blend the greek yogurt, peanut butter, maple syrup alternative and vanilla until smooth and fully mixed.
Pour this batter into the popsicle molds.
Put in the freezer for 4 hours.
While the bars are freezing, line a baking sheet with parchment paper.
Melt the chocolate in the microwave for 15-20 seconds at a time until fully melted.
Take the frozen popsicles out of the freezer and drizzle the melted chocolate over them and immediately return to freezer for another 30 minutes.