Ingredients

3 rainbow chard leaves

2 Tbs unsalted butter

2 tsp brown mustard seeds

1 tsp cumin seeds

1 tsp coriander seeds

2 tsp minced garlic

1/4 tsp turmeric

1/4 tsp cardamom

1 medium onion, cut into 1/2 inch dice

3/4 lb. rhubarb (about 2 1/2 cups)

3/4 cup French green lentils, rinsed and drained

1 Tbs packed brown sugar; more to taste

6 Tbs whole milk greek yogurt

3 Tbs chopped fresh cilantro

Kosher salt

Preparation

  1. Coarsely chop chard leaves and slice stems 1/2 inch thick.
  2. Heat the oil in a 4 to 5 quart heavy duty pot over med-high heat. Add the mustard, cumin and coriander, stir to coat, and then cook until the mustard seeds begin to pop, about 1 min. Turn the heat down to med low and stir in the ginger, garlic, turmeric, and cardomom. Cook, stirring, until fragrant, about 2 min.
  3. Add the chard stems and onion and cook, stirring occasionally, until the onion is translucent, about 5 min. Add the rhubarb, lentils, brown sugar, 2 tsp salt and 5 cups of water. Bring to a boil and then simmer for 30 minutes. Add the chard leaves. Continue to simmer until the lentils are tender but not falling apart, about 5 minutes more. Season to taste with salt and brown sugar. Serve topped with a dollop of greek yogurt and the cilantro.