You can buy Pappardelle pasta at your local supermarkets - Trader Joes, Whole Foods, Walmart etc. Fresh pappardelle pasta can be also be found at specialty Italian or Mediterranean grocers. You can also purchase dry pappardelle on Amazon. It's commonly found in the refrigerated section of the grocery store alongside fresh pastas, or with your regular boxed pastas in the dry goods isle. These come as pappardelle nests.