Place a dollop of the hot mixture in each egg cup, filling to the top is not needed. They will burn between 10-15 minutes, long enough to start either a BBQ or a wood burning stove. The advantage is not using starting fluid in the grill or a mountain of paper in the wood burning stove. They will start with a match or my preferred method is a propane torch or the endless match with a trigger. If you are in need of a safe and easy means to start a fire this may just fill the bill, give it a go.