@Buff and his issue - I absolutely understand. It took me years to beat my mother into submission (not literally), but even then she lapses from time to time. She basically has nothing else to do in life but to interfere with my affairs (this one literally) so that is what she does to pass the time.

I've also tried the "good" talk, around 400 times (no, that is not an exaggeration. If anything I lowballed it.), but it never really worked. What worked was me moving out and working or studying overseas. She got bored out of her mind (until I got back) and in fear of me leaving again she tries her best to stop being pesky.

On the subject of cooking, I also keep telling my mother to stop doing it for me (or anyone else) not because of preference but because she sucks at it. I, on the other hand, am skilled at it so I cook most of the meals for the two of us. The rest of the time we buy from restaurants or other food establishments.