Slow-Cooker Sweet Potato and Lentil Soup

  • Level: Easy
  • Total: 8 hr 25 min
  • Prep: 25 min
  • Cook: 8 hr
  • Yield: 4 servings
  • Nutrition Info
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Ingredients

1 large sweet potato, peeled and diced

3 medium carrots, cut into 1/2-inch pieces

3 stalks celery, cut into 1/2-inch pieces

2 leeks, halved lengthwise and cut into 1/2-inch pieces (white and light green parts only) 

3/4 cup dried yellow or red lentils

1 4-inch piece ginger, peeled and finely grated

1 teaspoon curry powder

Kosher salt

1 tablespoon unsalted butter

2 cloves garlic, thinly sliced

Juice of 1/2 lemon, plus lemon wedges for serving (optional)

1/2 cup chopped fresh cilantro

Directions

  1. Combine the sweet potato, carrots, celery, leeks, lentils, ginger, 3/4 teaspoon curry powder and 1 teaspoon salt in a 4-to-6-quart slow cooker. Add 6 cups water and stir, then cover and cook on low, undisturbed, 8 hours. 
  2. Stir the soup vigorously with a whisk to make a rough puree. Thin with hot water, if desired. 
  3. Melt the butter in a small skillet over medium-high heat. Add the garlic and the remaining 1/4 teaspoon curry powder and cook until the curry powder is slightly toasted, about 1 minute. Stir the curry mixture into the soup and add the lemon juice, cilantro, and salt to taste. Serve with lemon wedges.  
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