Just came up with a good close enough solution while looking for a keyboard shortcut for cookies myself.
Right click on address bar
edit search engines.., under
other search engines you can add urls and keywords. once you add something here, later when you type in the keyword in address bar of tab it will take you to the URL you enter in the
edit search engine.
I use it as a keyboard shortcut to get to favourite websites. Now in the "edit search engine" add url
chrome://settings/siteData and any keyword you want , ex: "ck". once you enter that go to a new tab and type "ck" in address bar it will take you to cookie directly. In that page, tab x3 will let you highlight "remove all" and then hit enter to confirm. Then tab x3 again to highlight "clear all" and enter to confirm.