spicy chickpea and spinach curry

2 cups dried chickpeas, picked over
-Epicurious, Feb 2007

8 cups baby spinach leaves
2 (15-ounce) cans diced tomatoes
2 teaspoons ground coriander
2 teaspoons ground cumin
1 teaspoon garam masala*
1/2 teaspoon ground turmeric
2 teaspoons kosher salt
1/2 teaspoon freshly ground black pepper
2 tablespoons fresh cilantro, chopped

In large bowl, combine chickpeas and enough cold water to cover by two inches. Cover and refrigerate 8 hours or overnight.

Drain chickpeas, then combine in slow cooker with 1 cup water. Cover and cook on high, stirring occasionally, until just tender, 3 to 4 hours. Add spinach, tomatoes and their juices, coriander, cumin, garam masala, turmeric, 1 1/2 teaspoons salt, and pepper. Reduce heat to low and cook 1 hour more. Sprinkle in remaining 1/2 teaspoon salt, stir in cilantro and serve.