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Green Soup with Sweet Potatoes and Sage

From the book Love Soup by
Serves 5 to 6

Introduction

Onions and sage, a classic pair, give this beautiful soup its subtle character. The sweet potatoes and stewed garlic add a layer of sweetness under the earthy taste of Russian kale, one of my favorite greens — but it is the perfume of the sage that brings it all together.

Ingredients

Soup

lb. (570 grams) sweet potatoes
tsp. sea salt, plus more to taste
2 to 3 Tbsp. chopped fresh sage leaves or 1-2 Tbsp. crumbled dry sage
1 bunch Russian kale (8 ounces; 250 grams)
1 bunch green chard (8 ounces; 250 grams)
8 cloves garlic, peeled
3 cups (700 milliliters) vegetable broth
2 large yellow onions (500 grams)
2 Tbsp. (30 milliliters) olive oil
~ Freshly ground black pepper
~ Fresh lemon juice (optional)

Garnish

~ Fruity green olive oil

Steps

  1. Peel and dice the sweet potatoes, combine them in a large soup pot with 3½ cups (800 milliliters) water, a teaspoon of salt, and the sage, and bring to a boil. Lower the heat and simmer, covered, about 10 minutes.
  2. Wash the kale and chard, trim away the tough stems, and chop the greens coarsely. Add the greens to the soup, along with the garlic cloves and the vegetable broth. Continue simmering gently, covered, for another 20 minutes.
  3. Meanwhile, chop the onions and sauté them gently with a pinch of sea salt in the olive oil over medium-low heat, stirring frequently, until they are soft and golden brown, 30 to 40 minutes. When the onions are ready, add them to the soup and let it cool slightly.
  4. Purée the soup in a blender, in batches, and return it to a clean pot, or use an immersion blender. Add a little more water or broth if the soup is too thick to pour easily from a ladle. Taste and correct the seasoning with a bit more salt, if needed, and freshly ground black pepper to taste. If you like, add a small amount of fresh lemon juice, but taste as you go — you don’t want to overwhelm the lovely flavor of the onions and sage.
  5. When you serve the soup, drizzle a thread of fruity green olive oil on top of each steaming bowl — just a teaspoon or so. This last step is essential, as the taste of the fresh, unheated olive oil is entirely different from that of cooked oil, and it wakes up all the flavors and makes them sing.

Notes

This recipe can be easily doubled.

This content is from the book Love Soup by Anna Thomas.

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1. by Megan Mountcastle on Oct 8, 2010 at 8:11 AM PDT

Sounds delicious! Can’t wait to try, especially now that the weather is cool. Always looking for new ways to prepare greens.

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