Hoping someone can help me!

Read through Sapph cooking wiki, googled, read discussions and comments and can't find a definitive answer.

I've tried:
- right clicking on powdered egg can in inventory, only gives me option to 'eat'.
- having powdered egg can in my inventory and opening build menu to see if egg recipes take the can as 'eggs'

I can't see a recipe either for making them up, like the 'powdered milk' into 'bottle of milk'.

Does anyone know how to use these?