Weight gain - I feel like a cow, but I don't look like a cow yet!

In that I'm sitting here chewing my food for who knows how many times before managing to gulp it down. It's hard work trying to increase my caloric intake, so I can gain some weight. I know a lot of people want to try to lose weight at the upper end of the spectrum, but for those of us at the lower end, we usually want to try to gain weight and meet in a happy middle. It's so much easier to maintain your current weight.

Has anyone had any success in a weight gain diet? At the moment I'm just trying to double up on everything I usually eat, but it's getting harder and harder to keep the food all down, or even going down, because my stomach is like, "No, no more, wtf, you crazy!?" Or does anyone know and foods that are high in calories that don't look like a bus to eat. I wish there was some compact nutritional candy bar that had like 1,000 calories, that would be so easy to just eat one and be set for the day. Any help, tips, or advice? I'm trying to bulk up and get fatter, bigger so I can work it off at the gym and build new muscle.

Jam it back in, in the dark.