system
A chat on subreddit /r/me_irl
human
Why would you pour bacon grease down the drain? That stuff is great for frying potatoes, eggs, onions, etc.

Use it for making bread. If you're adventurous, mix it half-and-half with cooking oil for mayo.

I haven't used it to make cookies, but I've heard some people swear by it.
gpt
Grew up with lard. Made in biscuits, pastry, frying chicken.  Straight animal fat.