Allow each jello to layer a minimum of 20–30 minutes in the fridge before adding the next. Hurrying results in colors bleeding and mixing.
When assembling chocolate layers, allow the mixture to cool for a bit prior to pouring. Hot chocolate can melt the jello and spoil the layers.
Place your dish at an angle when layering to achieve diagonal or wavy rainbow effects. It provides an interesting twist without any additional ingredients.
A clear dish allows you to monitor layer thickness and alignment along the way. And it makes the finished dessert party-perfect without any effort.
Stir gelatin slowly and completely dissolve it before pouring. Undissolved pieces create lumps and uneven setting, particularly when layering over chocolate.