It is very easy. I bought plastic eggs from the dollar store (12 for $1) and punched a hole in the top of them using a hammer and nail. Mix your Jello ( 1 cup hot water, dissolve then add 1/2 cup of cold). Using a funnel pour the liguid into the eggs. Make sure to grease the eggs using pam or vegetable oil. Chill in the fridge for 4-5 hours. My eggs didn’t seal so some of the liquid poured out. I waited the 5 hours then topped them off with a different colour and chilled again! My 3 year olds playschool class loved these!