This creamy spring soup, courtesy of Au Bon Pain, is a delicious way to eat more seasonal vegetables. Petite peas give it a subtle sweetness that pairs nicely with the salty Parmigiano-Reggiano cheese. A hint of fresh chives and a bit of heavy cream finish this silky soup perfectly, making it a welcome addition to any spring meal.
At Au Bon Pain, we like to keep a little definition to the ingredients so that the soup isn’t complete smooth.
If you don’t have an immersion blender you can puree the soup in batches in a blender, but use caution: hot ingredients expand when they’re blended (because of the steam).
In a heavy bottomed soup pot, heat the oil over medium heat and sauté the onion and celery until they begin to sweat and soften, approximately 5—7 minutes.
Add the chopped asparagus (reserve the tops), peas, and garlic; cook about 1 minute more.
Add the vegetable stock and bring it to a boil. Partially cover the pot, reduce the heat to medium-low, and simmer until the vegetables are just tender, about 10 minutes.
Remove the soup from heat and use an immersion blender to puree the ingredients to your preferred consistency. Return the soup to low heat and add the heavy cream, chives, Parmigiano-Reggiano, fresh lemon juice, salt, and pepper to taste. Bring the soup to a low simmer for five minutes before serving with the reserved asparagus tops.