How to pronounce “cockle”(noun) in English

So oysters grew from slimy mud, cockles grew from sandy mud, limpets grew from rocks, and so on.

and really sort of investigate firsthand um we did a lot of investigation actually on google earth the place we departed from cockle creek we had sat in

um the time spent in reconnaissance this is actually a business meeting this is the departure location um cockle creek we were moored up just off there

was fully prepared and everything packed up we then moved it down to here which is which is cockle creek which is this

Well, that warmed the cockles of Galen's heart because he, in fact, had not written the book.