Basic Trope: A character has perfectly good cooking skills, but often creates recipes that sound and/or taste disgusting.
Straight: Alice cooks up things like turnip cookies, strawberry tripe pudding and beef steak marinated with cod-liver oil.
Exaggerated: Alice will combine ingredients never remotely considered by any sane person such as cockroach lasagna, earthworm flavored ice cream and monkey brain marzipan.
Downplayed: Alice is fairly conventional but once in awhile makes up an oddball recipe.
Alice love to experiment with cooking and desires to create the worlds most original recipe but just doesn't understand that some things just should not go together in a dish.
Alice studied molecular gastronomy and apprenticed under Heston Blumenthal, putting the theory into practice with her cooking. Despite the weirdness and apparent incompatibility of the ingredients she uses, her meals are actually quite tasty.
Alice loves practical jokes.
Inverted: Alice's dishes look very appetizing, but tastes horrible due to the fact that she cannot cook.
Subverted: Alice, despite her reputation, makes many tasty meals.
Parodied: Alice regularly adds ingredients like wax, wood-chips and lighter fluid to her dishes.
Zig Zagged: Alice bakes turnip cookies for Bob. He thinks they're delicious until he finds out what they're made of. Once he get used to the idea, he admits that they were still pretty tasty and he would eat them again. Then the next time Alice makes them, she serves them with a spider leg garnish.
Alice's cooking skill is never brought up.
Alice sticks to conventional recipes.
Enforced: "We need a believable character flaw for Alice...how 'bout we make her tastes in cooking downright freakish?"
Lampshaded: "Alice sure likes creating the weirdest dishes I have ever heard of".
Exploited: Alice's friends use her unconventional cooking as a threat/punishment.
Defied: Alice absolutely refuses to stray from a recipe when cooking.
Discussed: "Hey, Laika! Dinner at Alice's tonight! Five bucks she will make her infamous pineapple and pig's blood pie".
Deconstructed: Alice's unwillingness to stick to more conventional dishes causes her to lose the love of Bob...
Reconstructed: ...But Bob tries her unconventional dishes and is so impressed, that he asks her to marry him.