Pink drinks make me happy. Of course there's rosé, and even more lovely, sparkling rosé, but when a cocktail arrives before me blushing with a rosy hue, I am downright delighted. The refresher pictured above is "El Diablo" at Natural Selection, a combination of tequila, cassis and ginger beer. I've written before of my affection for the "Pink Pepper" at Yakuza, which uses pink peppercorns to spark up the flavor of grapefruit. At Prasad, my favorite juice bar in the Pearl, they serve a mixture called "Beulah Land," blending grapefruit, apple, celery and mint, that arrives pretty in pink. The cocktail below was a brilliant spring concoction at Castagna, simply called "Rhubarb," made with Appleton white rum, rhubarb and eggwhites. One of my dining companions ordered that last night, while I couldn't resist their tangelo gin and tonic. Castagna's short list of culinary coctkails matches the inventiveness of their menu, definitely one return to for further exploration. Unfortunately, they're only served in the dining room, not the café, just one more element that makes the dining experience there so special.