Making Yellow Snow Is Harder Than You'd Think - Alinea - Gizmodo

Food Science

Making Yellow Snow Is Harder Than You'd Think

People have been eating snow since the 4th-century BC, but nowadays the behavior is discouraged by parents the world over. People make ice creams, sorbets, gelatos, etc. every day. We wanted to make snow. In the kitchen. It's hard.

Actually, making yellow snow is easy. All you need is snow. And pee.