I've had good luck with Lulu. My experience was short-runs. I sometimes like to make custom notebooks for myself and friends. But the quality was good. Lulu will print spiral fold flat editions. Might come in handy for a cookbook.

I've also had good luck with Blurb. They do high quality photobooks. Which isn't what you're selling, but I'm mentioning them because they will offer your book for sale, print-on-demand, via their site. And wouldn't be surprised if they have a way of selling via Amazon. They wouldn't be a bad choice if you wanted to sell a $50+ coffee table edition of your cookbook. Or a bit lower for a paperback edition.