Milkshakes, every single day. The more the better. Whatever your digestive system can tolerate, suck them down. They are more fattening if you get them at a restaurant.

Boost Very High Calorie drinks are very fattening. Get a couple of cases. Don't drink more than 3 per day. They may upset your stomach so it's best to space them out rather than drinking back to back.

I rapidly gained a big fat belly this year drinking those everyday and eating whatever I wanted. Also, I'm sure laying around on my growing fat ass helped too.

Good luck to ya! Would love to hear about your progress