Add the butter, peanut butter, vanilla, powdered milk, and salt to a large bowl. Stir until thoroughly mixed.
Stir in the confectioners' sugar, working with your hands until well combined. The mixture should be stiff, slightly dry, yet easy to form into a ball. If it is too dry, stir in peanut butter to loosen it; if it is too wet, add more confectioners' sugar. Cover and set aside.
Chocolate
Melt 1/2 cup of chocolate wafers in the microwave for 30 seconds. Stir. Melt again for 30 seconds. Then, stir until entirely melted.
Pour the chocolate into the bottom mold indentations, filling them to the fill lines. (The bottom mold has the larger egg cavities that the other molds will fit into.) Tap the mold on the countertop to release any air bubbles.
Fit the individual blue liners into the chocolate; they will squeeze the chocolate around the bottom mold. Add the top mold and press it firmly to ensure the chocolate coats the sides evenly. Place the mold in the refrigerator for 15 minutes to allow the chocolate to harden.
Once hardened, remove the top mold and carefully pull out the individual molds. Carefully peel off the blue liners from the chocolate to reveal the perfect egg shells.
Place the chocolate egg shells back into the bottom mold.
Add the peanut butter filling to each shell, filling them to the tops. Pat the filling into each shell to ensure it fills each shell completely.
Melt more chocolate and spoon it over the peanut butter, spreading it with the tip of a spoon. This layer makes the back of the eggs.
Place the eggs in the refrigerator and chill for 15 minutes. Then, remove the mold and turn it upside down on a towel. The eggs will easily release from the mold. Use the towel to prevent any damage when they fall from the mold.
Notes
Mold Source
You can find a 3-part mold to make these peanut butter bunny eggs by clicking here or here.
Yield
This recipe makes approximately 30 eggs. You may use less chocolate than the recipe specifies, which will also reduce the calories for each egg.