based queens bully fat chick into anorexia

Ok here's the backstory - I'm currently roommates with a couple girls who've always treated me like shit because I'm not as thin or conventionally attractive as them (not even the ana part of me saying that, like they genuinely don't respect me, exclude me from events, and have even said some mildly racist things to me). Over the past year it used to hurt me a lot and gave me so many insecurities but now I'm in total revenge mode.

So far I've lost like 25 lbs over the past year, 15 being in the past month and I plan on keeping it up for the rest of the summer. However, that little part of my brain that's a bit tooo vindictive wants them to gain a little weight and feel as shitty as they made me feel. In my house, it's fairly common place, if someone feels like cooking or baking, to make a huge dish and leave it out in the kitchen for everyone to share. What are some really fattening and delicious recipes I can make for them?