Masoor Dal Tadka

Name: Masoor Dal Tadka
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: Indian
Ingredients: 1 cup split red lentils (); 3 cups water (plus more if needed); 1/2 teaspoon ground turmeric; 1 tablespoon canola oil (or ghee); 1 teaspoon cumin seeds; 1 large red onion (halved, peeled, and finely diced); 2 garlic cloves (finely minced); 1 serrano chili (slit in half lengthwise); 1 plum or roma tomato (diced with the juices); 1 teaspoon garam masala; 1 teaspoon ground coriander; 1/2 teaspoon kashmiri chili powder (optional); Salt and black pepper (to taste); 1 large garlic clove (thinly sliced); 1 teaspoon brown or black mustard seeds (optional); 1 handful fresh cilantro (minced); 1 lime (for serving); Cooked white rice or chapati (for serving)