This recipe requires a blender, cocktail sticks, and a piece of styrofoam or floral foam. You can also use a medium-sized silicone egg mould in order to speed up the process of moulding the filling. I used
this mould (not an affiliate link) and filled them no more than ⅔rds of the way as they are very deep and do not create perfect eggs when sticking 2 halves together.
If you find that the chocolate is too thick then melt a tablespoon or two of cacao butter and stir in to thin the mixture. If the mixture is too thin, leave to thicken over time.
Recipe makes 8 medium-sized eggs.