Hard boil your eggs and then with a slotted spoon, transfer them to a clean dish towel (this keeps them from rolling around).
Gently crack each egg in several places with the bowl of the spoon. The more cracks you make, the more spider webs you will get.
Mix some food coloring (we used Wilton black) in the pan with hot water. Transfer eggs back to pan and let cool completely.
Carefully peel eggs to reveal spider webs!