The easiest way to clear cookies and cache in Chrome browser is by first holding CTRL + SHIFT + DEL keys down together.

Another easy way to  bring up the option is by going to this URL (pasting it in the site bar and hitting enter): chrome://settings/clearBrowserData

Either options will bring up the following screen:

You can control how far back you would like to remove cookies.cache - it is usually best to make sure the highlighted options above are selected as in the screenshot. You can choose to preserve your browsing history by having the box unchecked, and you can make sure to keep saved passwords by having the box for it (also seen above) left unchecked as well.