Everyday Dal from Gujarat

200 grams toor dal 
1 teaspoon ground turmeric
1 teaspoon chili powder
100 grams sweet potato, peeled and cubed
2 tablespoons ground peanuts (or peanut butter)
1 tablespoon ghee
1/2 teaspoon mustard seed
1/2 teaspoon cumin seed
Thumb-sized piece root ginger, grated
Pinch asafoetida (hing)
10-12 dried fenugreek leaves (methi)
1 tablespoon chopped tomato
50 grams jaggery
1 tablespoon lemon juice
Salt, to taste

Rinse the toor dal. Soak for an hour or two. Drain the dal. Combine in pressure cooker with 700 ml (3 cups) water, turmeric, and chili powder. Cover and cook under pressure for 20 to 25 minutes. Remove from heat and let the pressure drop.

Cook the sweet potato cubes until soft. Mash the sweet potato with the ground peanuts/peanut butter and blend with the cooked dal.

Heat the ghee in a small saucepan and fry the mustard and cumin seeds together. As they begin to splutter, add the grated ginger, asafoetida, and dried fenugreek leaves. When aromatic, swirl into the cooked dal. Cook for a couple of minutes. Stir in the tomato, jaggery, lemon juice, and salt to taste. Cook for a minute more. Serve with rice.

From The Dal Cookbook by Krisha Dutta, with minor changes