What is the shelf life of omelette batter?

You shouldn't make omelette batter ahead of time. Here's why:

* Eggs change: The whites and yolks separate when stored, leading to a less fluffy and less desirable omelette.

* Texture: The batter thickens and becomes gummy over time, making it difficult to cook.

* Safety: Eggs are a common source of bacteria, and leaving them uncooked at room temperature for an extended period increases the risk of foodborne illness.

It's best to whisk your eggs and mix your omelette ingredients just before you cook.

If you're looking for a way to save time, you can pre-chop your vegetables and keep them in the fridge until you're ready to cook.