Add the peanut butter, protein powder, powdered sweetener, and vanilla extract to a food processor. Pulse until uniform. The mixture shouldn’t be too thin; it must be pressed together.
Add the heavy cream to a bowl. Beat using a hand mixer or whisk until stiff peaks form. Add the peanut butter mixture to the whipped cream.
Beat again until the 2 mixtures are incorporated. Taste and adjust sweetness if needed. You can add any additives to the mixture at this point.
Divide the mixture into the egg mold. Smooth the surface with a spatula or spoon. Transfer the mold to the freezer for 8-12 hours until fully frozen.
Add the sugar-free chocolate and coconut oil to a heat-resistant bowl. Melt them in the microwave in 20-second intervals until they completely melt. Make sure to stir in between, every 30 seconds.
Take the molds out of the freezer and flip the eggs onto a plate lined with parchment paper. Spoon the chocolate over the eggs and cover all sides. Sprinkle with some crushed peanuts and serve immediately.