From an article in the International Herald Tribune:
Carrie Dashow dropped a large dollop of lemon sorbet into a glass of Guinness, stirred, drank and proclaimed that it tasted like a "chocolate shake."
Nearby, Yuka Yoneda tilted her head back as her boyfriend, Albert Yuen, drizzled Tabasco sauce onto her tongue. She swallowed and considered the flavor: "Doughnut glaze, hot doughnut glaze!"
They were among 40 or so people who were tasting under the influence of a small red berry called miracle fruit at a rooftop party in Long Island City, Queens, last Friday night. The berry rewires the way the palate perceives sour flavors for an hour or so, rendering lemons as sweet as candy.
The host was Franz Aliquo, 32, a lawyer who styles himself Supreme Commander (Supreme for short) when he's presiding over what he calls "flavor tripping parties." Aliquo greeted new arrivals and took their $15 entrance fees. In return, he handed each one a single berry from his jacket pocket.
"You pop it in your mouth and scrape the pulp off the seed, swirl it around and hold it in your mouth for about a minute," he said. "Then you're ready to go." He ushered his guests to a table piled with citrus wedges, cheeses, Brussels sprouts, mustard, vinegars, pickles, dark beers, strawberries and cheap tequila, which Aliquo promised would now taste like top-shelf Patrón.
The miracle fruit, Synsepalum dulcificum, is native to West Africa and has been known to Westerners since the 18th century. The cause of the reaction is a protein called miraculin, which binds with the taste buds and acts as a sweetness inducer when it comes in contact with acids . . .
Apparently, decades ago some researchers studied this berry to determine whether it had potential for use as a sugar substitute.