Ingredients

For the soup:
1 tbsp. Unsalted butter
1 tbsp. Olive oil
2 Medium leeks, white and tender green parts only, sliced
1 Small yellow onion, coarsely chopped
3 cloves Garlic, coarsely chopped
1 ½ lb. Broccoli, both crowns and stems, trimmed and coarsely chopped
5 cups Chicken or vegetable stock
1 Rind (about 2 inches square) from a piece of Parmesan cheese
¾ tsp. Kosher salt, or less if your broth is well salted
For the sour cream:
1 cup Sour cream (not low-fat or nonfat)
2 Scallions, white and pale green parts only, very thinly sliced
¼ cup Minced chives
1 tsp. Grated lemon zest
2 tbsp. Fresh lemon juice
½ cup Finely grated Parmesan cheese
½ tsp. Kosher salt
¼ tsp. Pressed or minced garlic

Description

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