Sandwiched between my sage plant on the left and flourishing fava beans on the right is my bright green perennial sorrel plant in my potager. Sorrel is an herb that adds lemony flavor to salads, soups, and sauces. There are two types of sorrel: garden sorrel, Rumex acetosa, which I grow, and French sorrel, Rumex scutatus (or buckler sorrel). The two types are very different in appearance, but similar in flavor. Garden sorrel has large sword-like leaves and French sorrel has leaves almost shaped like that of an oak leaf and only reaches about 6'“ in height. If you have the room, try growing a patch in your garden. You can find sorrel in some specialty grocery stores and markets in the spring, but if you grow it in your garden in Southern California, it will thrive year-round.

Sorrel is such a sensational flavor, but there are two things to be aware of. When you cook, steam, or sauté sorrel leaves, it is like spinach, in that a huge amount of fresh leaves becomes a small wilted amount—so you need to use more initially than you might realize. Sorrel leaves when fresh are a bright happy green color, but can turn a sort of muddy green darker color when heated.

Patricia Wells has a great sorrel soup recipe below, where she shares a secret for retaining bright green sorrel color, from her friend, Chef Dieter Müller. Blend your pureed sorrel with room temperature butter first, and add it to the soup at the end of your cooking time. The soup retains its desirable green color. This elegant soup can be served hot or cold, and can be made with fresh watercress leaves as a nice substitute.

Amazing Sorrel Soup

Lovingly Adapted from Patricia Wells at Home in Provence

Ingredients:

3 ounces (90 grams) fresh sorrel leaves, stemmed, thoroughly washed, and dried

3 Tablespoons unsalted butter, at room temperature

2 Tablespoons extra-virgin olive oil

1/2 small onion, peeled and sliced into thin rounds

6 ounces (180 grams) starchy potatoes, peeled and diced

1 quart homemade Chicken or Vegetable Stock, or store bought

1 cup heavy cream

Sea salt and freshly ground white pepper to taste.

Directions:

1) In a food processor, puree the sorrel, pulsing on and off for 30 to 45 seconds. Add the butter and puree. Transfer to a small bowl, cover, and set aside in a cool area of the kitchen. Do not refrigerate, or the sorrel butter is likely to be too cold to add to the soup at the end.

2) In a large saucepan, heat the oil until it is hot but not smoking. Add the onion and sweat them over low heat until soft, 3 to 4 minutes. Add the potatoes and cook over low heat until golden, 10 to 15 minutes. Remember not to cook over too high a heat, or they will burn instead of coloring a beautiful golden brown.

3) Add the stock and simmer for about 20 minutes or until the potatoes are fully cooked. Stir in the heavy cream. Using an immersion mixer, puree the soup directly in the stock pot. A food processor can also be used. Return the soup to the stockpot if using a food processor. The potatoes will give thickness and body to the soup without detracting from the sorrel. Taste for seasoning. Just before serving, whisk the sorrel butter into the hot soup, taking care to mix thoroughly and quickly. Makes 4-6 servings.

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