Navigate to the Settings, click Advanced and Content settings. Select Cookies, and click "See all cookies and site data" or go to chrome://settings/siteData. Here you can use the search bar and search for specific websites and click the Delete button to clear that sites' cookies. You can also click on "Remove All", this will delete all cookies stored on the browser.
Clearing Cache Data
Navigate to the Settings, click Advanced and Clear browsing data or go to chrome://settings/clearBrowserData. Here you can select the time frame and what data to clear. Select "Cache images and files". You can also select "Cookies and other site data" to clear cookies. Click CLEAR BROWSING DATA when you're done.