There is an option to save user data using the userDataDir option when launching puppeteer. This stores the session and other things related to launching chrome.
puppeteer.launch({
userDataDir: "./user_data"
});
It doesn’t go into great detail but here’s a link to the docs for it: https://pptr.dev/#?product=Puppeteer&version=v1.6.1&show=api-puppeteerlaunchoptions