In a small bowl, mix together the powdered peanut butter, water, and 1 teaspoon stevia.
In a separate bowl mix together cocoa powder, yogurt, milk, and 1 teaspoon stevia. While mixing, melt the dark chocolate chips in a separate bowl.
Line a mini muffin tray with liners, then drizzle dark chocolate to coat the bottom of each mini muffin liner.
Pour 1 teaspoon of peanut butter on top of the dark chocolate, then top with 1 teaspoon of cocoa mixture. (Optional: blend together cocoa mixture and peanut butter and pour 2 tsp into each mini muffin holder).
Cover tray with plastic wrap and freeze for two hours. Serve chilled and enjoy!
You can also use popsicle holders to make this recipe as a popsicle treat instead!