Chill filled molds in refrigerator until hardened. (This should only take around 15-20 minutes.)
Once set, peel gummy candies from molds and enjoy!
Store gummies in the fridge in an airtight container, or leave them in the molds and cover until ready to remove and enjoy. Lasts up to 7 days.
Yields 40 gummy worms. (Filled 2 of my silicone gummy molds.)
Note on Jell-o:
Use whichever flavor/color of boxed Jell-o that you want! Just be sure to use an entire large box (6oz) of Jell-o, or you can combine 2 small boxes (3oz each) of the same color. Be careful trying to mix/swirl different colors—they may bleed together and turn brown-ish. If you want different colored worms, you can do as I did: double the recipe and prepare 2 separate batches of worms, using a different color/flavor of boxed Jell-o to make each.