You like writing for the bad sanses huh. Then may I request Horror x Reader fluff? Anything more specific is author's choice. Thanks!
Cooking would be Horror's main love language.
In Nightmare's castle, the skeleton is almost always in the kitchen—not because he didn't have his own room, but because he was always busy making new things or researching different foods.
So, since he was usually in the kitchen, he often made things for you.
He would make your favorite foods and bake whatever pastries you liked, but he would also make new things he believed you'd like. If you tasted something he made and even remotely liked it, he'll find another food that's similar just to see if you like it any better.
On the topic of meals, he never lets you miss one. You're getting breakfast, lunch, and dinner. If you want snacks, he'll happily provide those too.
If you're still in bed by the time breakfast rolls around? He's bringing yours and his food into your room so you both can eat together.
He doesn't care if you tell him you're not hungry or that you already ate, for he'll still make you sit down at the table before putting a plate in front of you. He wouldn't expect you to eat it all, but he needs to at least see you take a bite.
He does that because he doesn't like the idea of you being hungry. If there's food available, you're going to eat—even if it's just a little bit.
If you have cravings, all you have to do is tell him and he'll be quick to make whatever it is you want. If you're having those craving moments where you aren't sure what exactly it is you're craving, don't worry, he'll figure it out—he somehow always manages to.
If you want to give him a gift, please give him his own book to write recipes in. Write his name on the front page so as soon as he opens it, he'll be greeted with your handwriting.
He'd probably stare at the front page for a while before setting it down to give you a hug.
A lot of his recipes would have your name written somewhere. He'd write down your name in your favorite recipes of his, and he'd also write down specific modifications on certain recipes just so he makes it the way you like.
He would also have tabs that lead to your favorite recipes just so he can quickly get to them so he can cook or bake for you.