1. Egg yolks
Have egg yolks lying around? Freeze them!
But only if they are pure and unbroken- you don’t want any salmonella crawling about your freezer. Egg yolks contain a ‘vitelline membrane,’ which acts as a protective barrier for any bacteria. This is because egg yolks contain fat and proteins, which provide nourishment for such bacteria.
So again, if the egg yolks are pure and unbroken, freeze them.
How to do it:
You can do so by placing them on a tray or some wax paper and putting them in your freezer overnight. Once they’re frozen, transfer them to a freezer bag where you can store them for months!
I don’t eat eggs, but I know this hack from my roommate!