Ingredients

  • 8 ounces plain nonfat yogurt
  • 2 teaspoons unsalted butter
  • 1 medium onion, peeled and chopped
  • 1 bunch broccoli (about 1 1/2 pounds), trimmed, stalks peeled and cut into 1/2-inch rounds
  • 3 1/2 cups chicken broth, homemade or low-sodium canned
  • 2 teaspoons salt
  • Freshly ground pepper to taste
  • Small pinch cayenne
  • 4 stalks broccoli rabe, ends trimmed off

Method

  • Place the yogurt in a sieve lined with a paper towel.
  • Set aside until all of the liquid has drained off, several hours or overnight in the refrigerator.
  • Melt the butter in a large pot over medium heat.
  • Add the onion and cook until soft, about 5 minutes.
  • Add the broccoli stalks and florets and 3 cups of the chicken broth and bring to a boil.
  • Reduce to a simmer, cover and cook until the broccoli is soft, about 20 minutes.
  • Place half of the broccoli and cooking liquid with half of the yogurt in a blender.
  • Hold the top down firmly with a kitchen towel and blend until coarsely pureed.
  • Scrape the mixture into a large saucepan and repeat with the remaining broccoli, cooking liquid and yogurt.
  • Stir in the remaining 1/2 cup chicken broth, the salt, pepper and cayenne.
  • Warm the soup over low heat.
  • Separate the broccoli rabe stems from the leaves.
  • Cut the stems into 1/2-inch pieces and cut the leaves across into thin strips.
  • Bring a medium-size pot of lightly salted water to a boil.
  • Add the stems and blanch for 2 minutes.
  • Remove with a slotted spoon.
  • Add the leaves and blanch for 1 minute.
  • Drain.
  • Divide the soup among 4 bowls.
  • Top with the broccoli rabe stems and then the leaves and serve immediately.