author of Modernist Cuisine
...So Long as You Foam It Right
"There are some fruits that you can't use with gelatin because their juice attacks it—pineapple, figs, kiwis, and papayas. But if you want to make a foam with those, use a gelling agent called agar. It's made from seaweed."
Chef Grant Achatz
Alinea, Next, and Aviary in Chicago
Make Your Cocktails Smell as Good as They Look
"There's a technique in drink-making where you rinse the glass first—with vermouth or absinthe, for example. You can get the same effect with aromas using a smoke gun. If you're doing a bourbon drink, you could smoke the glass first, so that every time you take a sip, you'd smell some oak."