Manuel Linares is serious about ice cream. So serious that the Spanish physicist signed up for "mentored coursework" at a local business association, earned what he calls a "master's diploma in creating artisan ice cream," and created a frozen concoction that turns colors when it's licked, reports Phys.org. His Xamaleón flavor—which he claims took him and two pals just one week to whip up—is said to taste like tutti-frutti, though it may be hard for your brain to register any flavor as you're mesmerized watching your scoops gradually change from periwinkle blue to pink to purple with each lick.
Linares, who owns an experimental ice-cream parlor/lab called IceXperience in a coastal Spanish town, says his ingredients are all natural, though he won't 'fess up to what they are, notes Discovery.com—all he'll say is that mouth acids and temperature have something to do with the color changes. He also notes that a special, intriguing-sounding "love elixir" is sprayed onto each serving, presumably to help things along. Next up on Linares' ice cream agenda: ice cream that morphs from white to pink by itself—no tongue required—and a version that goes chromatically crazy when exposed to UV lights at nightclubs, says Gizmodo. (Click to ready why some ice cream bars don't melt.)