Sister won't give a single compliment to my cooking?

No, you're not hypersensitive. She is completely pretending you are not doing her an enormous favor by housing her while she studies, and not requiring her to do housework. Having her there has got to interfere w/ your social life, too.

Since she is ignorant in the kitchen and makes a giant mess which she doesn't clean up (someday she might burn up the whole kitchen or destroy your most expensive pot), if I were you I'd tell her that SHE HAS THREE CHOICES:

1 - Eat your food and keep any bad opinions about it to herself as a well-mannered guest should,

2 - Buy take-away (you can't force her to eat your food if she's willing to buy her own). or

3 - Get other lodgings.

Tell her you don't allow other people to cook in your kitchen, thems the house rules, and if she won't abide by them, she has to live elsewhere.

It's flabbergasting that she expects to lord it over you in your own home. I pity the childhood you must have endured.

P.S. ON EDIT: Unfortunately you need to give up your fantasy of having in her an enthusiastic audience for your cooking. Some people don't appreciate good home cooking. What you might do is fix just what you have been accustomed to fixing before she moved in, and serve only yourself. Then if she asks to have some, you could respond by telling her that you are sorry but you cooked just enough for one. This would establish that you are obliging her by cooking for her, not she, you, by eating it.

In future, if she indicates that she would like to eat your food w/o complaint (which is the best you can hope for from her), you have the choice of preparing extra w/o knowing whether she will eat it or has made other plans, OR you could let her know that if she wants you to have prepared enough for her, she must always tell you in advance. I think it would be safe to allow her to make toast in your toaster in the morning, but nothing more.

She disparages your food b/c it's her way of denying that she is in any way under obligation to you for all you're doing (which she is). She owes you big time, and hopefully will find a way to repay you in the future, though I wouldn't hold my breath waiting.

This is more of a relationship question than a cooking question, but I'll try to answer it fairly. You say your sister's a med. student, yes? So, she's insanely busy and probably short tempered and short on sleep too. That doesn't excuse her insensitive attitude though. It is very admirable of you to be such a good brother to her, but not if it's completely at her own expense. Sounds like she can eat out, and sometimes does, which wastes the efforts and the food that you make. I think you should make what you make like you make it, and tell her that if it's not to her particular tastes she's welcome to help carry the burden, and do some preparing herself. I'm guessing she's probably too engrossed and a bit too self-absorbed to do that, so tell her then that you'll leave her enough for a meal if she chooses, but that you'd like some respect for your work equal to the respect you are showing her by letting her pursue her career. And then, I'd let it go. You cannot force a compliment, but you can set your own boundaries. Nobody likes being insulted or taken advantage of, so don't let yourself be run over. It's your house. If you like to cook, cook, and believe me, if she wants to eat, she'll eat. Or Not. Whatever. And next time she complains about blandness, hand her the saltshaker and another one of ajinomoto and tell her to take care of it herself, on her own plate.

i would stop cooking for her altogether

some people dont appreciate home cooked food

and prefer the salt laden, msg ridden offerings of a fast food joint

you say you run all the errands etc and she does nothing

do nothing for her

why should she be organised and efficient while she still has a "mother" figure to do everything for her

i really dont like selfish people, and it sounds liek she is a little bit

i am also a big cook and love it when someone says they have really enjoyed something

but just once in a while i would love for someone to cook me something instead

she doesnt know how lucky she is

you should not ever take you sisters bf to the bar to hit on single foxy ladies. If she was not mad before she sure is now. I would really talk to her only she can tell you what she is really feeling about the other issues. I have to guess she ran to her room because she felt embarassed by you telling her that you videoed her without her knowing, and she does not want her bf to know things like that. But really take your sisters bf to the bar to hit on single girls. Is that really a guy you want around her? Saying she smells really good is kind of like a backwards compliment. Kind of like usually she does not. Think about it.

I would throw all the left over food in her bed and then when she's like why?!! Say, well i thought you notice it there as it's to bland to notice!

Or you just stop making her food, and tidying up after :D

Or tell her to move out.

Or tell your parents!!!

Try eating her for dinner. Invite some people over, put her on the table and have a go, the thighs are usually good