- Prepare baking sheets with confectioners sugar. Use an egg to press an egg indentation into the confectioners sugar. Set aside. 
- Add ½ cup water and gelatin to bowl of stand mixer fitted with whisk attachment. Allow it to bloom. 
- In a medium saucepan over medium heat, add granulated sugar, corn syrup, and 1/2 cup water. Stir until sugar dissolves then remove your spoon and do not stir again. Add a candy thermometer and allow the sugar to heat to 240°F. 
- Remove sugar mixture from heat and carefully pour into bowl of the stand mixture that has gelatin in it. 
- Turn the mixer on slow and then high and whisk for about 10 minutes or until fluffy and shiny. 
- Remove bowl from stand mixer and pour marshmallow into pastry bags. 
- Pipe marshmallow into the egg molds. 
- Allow marshmallows to set for 1-2 hours. 
- Chop chocolate and melt for 1 minute. Stir chocolate and melt more (15-second increments) if needed. 
- Pick up a marshmallow and dust off excess confectioners sugar. Drop into melted chocolate and coat completely. Remove and place on a parchment-lined baking sheet. Repeat with all marshmallow eggs. 
- Allow chocolate to set. (If you are adding sprinkles, do so while the chocolate is still wet.) 
- Heat candy melts and pipe onto hardened chocolate covered marshmallow eggs. 
- Marshmallows eggs will be fine at room temperature for 24 hours or in the refrigerator for up to a week.