Crushed under the weight of my own perfection

I need some advice. I don't have a television to hypnotise the kids while I make dinner. I also make all our food from scratch. It takes time. I've tried to buy prepared food, but I can't. It's just too icky. So here's the question: What do you do with a one-year-old while you're trying to cook and he just wants to open all the cupboards and dump everything out on the floor? He does not like his high chair well enough to sit in it. His sister's idea of interacting with him is hitting him/running away screaming "He's going to touch me!" I'm going nuts. Thanks in advance.