Foams may seem passé, an overused chef trick. But their airy consistency can help make a good dish great. Consider the blue-cheese foam here, made by loading a homemade blue-cheese dressing into a siphon and charging it with gas. Whether you’re serving the blue-cheese foam with an iceberg-lettuce wedge that is all about cool crunch, or eating it with hot and crispy chicken wings, the light and frothy texture is a wonderful contrast. Slideshow: Cheese Recipes
The 1-pint iSi Gourmet Whip Plus is sold on amazon.com for $109; 24 cream (N20) cartridges are $17.
Sliced tomatoes, iceberg lettuce wedges, fresh figs or buffalo chicken wings.