Dempsey’s creation spread like a virus through the social circuit, quickly becoming the dip of choice for everything from barbecues to baby showers. Its popularity endured more than five decades. Norman Kirk died. Rob Muldoon came and went. There was a global financial crisis. Then another one. Kiwi Onion Dip remained. “From then on whenever I went to the AC Nielsen presentations I was only interested in onion soup. It was so exciting to see the sales growing and growing and growing,” Dempsey said.