Cocktail master Eben Freeman of Tailor, having already taught us the secrets of the Hard Shake, has gone back into his cocktail lab and created one of the most compelling forms of liquor we’ve seen in a while: Tailor’s new “solids,” a series of edible cocktails. There are currently three on the restaurant’s menu: a Cuba Libre, consisting of rum and coke gelatinized into a cube (hence the name); a Ramos Gin Fizz Marshmallow (“the drink made properly is all meringue anyway, so why not make it a marshmallow?”); and his crowning achievement, the White Russian Breakfast Cereal. The last amounts to a Rice Krispies treat made by soaking the cereal in Kahlúa, dehydrating it, repeating that process, and then soaking it in vodka, sugar, and half-and-half. “Cocktail geeks are coming in and asking me all these questions,” Freeman complains. “This is just to have fun!” And, he adds, soberly, to “push the boundaries” of mixology. No wonder they’re curious.