Brown-Butter Sponge Cakes
Most cakes are leavened with baking soda or powder, but here Richard Blais uses a siphon to add air to batter. Then he squirts the batter into paper cups, microwaving each for just 45 seconds. Slideshow: Cake Recipes
The 1-pint iSi Gourmet Whip Plus is sold on amazon.com for $109; 24 cream (N20) cartridges are $17.
Ice cream and chocolate sauce.