I told her I’d never been more willing to commit to anything in my life. “Okay,” she said. They call it the Jumbo Sampler Sundae: five scoops of ice cream, along with five syrups or toppings. It’s one of the irresistible dessert items at Jaxon’s Ice Cream Parlor in Dania Beach, Florida. Its irresistibility is a biological phenomenon. A 2018 article published by the Nature Partner Journal: Science of Food says that by the “1900s, this trio of salt, sugar, fat took on a new psychosensory dimension when the processed food industry discovered that these ingredients could be formulated to produce a state of satiety, pleasure, and hedonia in those who consumed them.”