David Liederman, whose confections redefined the chocolate chip cookie and whose chain, David’s Cookies, eventually grew to more than 100 stores nationwide, died on Thursday in Mount Kisco, N.Y., near his home in Katonah. His wife, Susan Liederman, said the cause of his death, at a hospital, was a heart attack. Mr. Liederman’s innovative version of the chocolate chip cookie will keep his name alive. The cookie’s unique feature was that it was not made with standard Toll House chocolate chips but was studded with irregular pieces of dark Swiss Lindt chocolate. Mr. Liederman called his cookies chocolate chunk, a term that has become widely understood and used in the world of baking and confections.

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Persons: David Liederman, Susan Liederman, Ruth Graves Wakefield, Nestlé, Liederman Locations: Mount Kisco, Katonah, Whitman