1Method & Technique:
Sweat shallots and onion in olive oil over medium heat until beginning to color. Add mushrooms and continue to cook for 8-10 minutes. Add herbs. De-glaze with white wine and reduce until almost dry. Add vegetable stock and heavy cream and simmer until liquid has reduced by 25%. Puree in a blender until smooth. Season with salt and white pepper and strain through a sieve. Fill pint-size iSi Gourmet or Thermo Whip canister with hot soup. Secure the top and charge with one or two iSi N2O cream chargers. Shake and keep warm in a hot water bath at 160-180 degrees F.
Yield: 10 cups. For the quart-size iSi Gourmet or Thermo Whip, simply double the recipe.
This comforting tomato soup is super easy and super delicious. Canned San Marzano tomatoes marry with soft, sautéed onions and garlic, a pinch of red pepper, and chicken broth to create a soothing, savory bowl. Finished with a bit of cream, this is begging for a grilled cheese sandwich on the side. But really, it tastes great with lots of things, as well as on its own (though a basil and Parmesan garnish doesn't hurt). Read more.
This soup is an equally wonderful way to use up all the leftover veggie odds and ends in your fridge, or to celebrate the freshest produce in season by buying it specifically for the dish (and if you get a CSA box, it can serve both purposes). Whatever vegetables you use, this is an easy, nutritious, and delicious meal, and endlessly customizable. Fresh pesto makes a great, vibrant garnish, but you could also simply sprinkle on a bit of grated Parmesan and cracked black pepper. Read more.