South Indian Dal Tadka is a flavorful lentil dish with a hint of tanginess, commonly served with rice or dosa (South Indian crepes). To make this South Indian-style dal tadka, you will need a combination of lentils like toor dal and masoor dal. The lentils are pressure cooked until soft and then mashed to a smooth consistency. In a separate pan, heat oil and add mustard seeds, cumin seeds, curry leaves, and dried red chilies. Once the spices crackle, add onions and cook until golden brown. Then, add tomatoes and tamarind pulp for tanginess. Add a blend of spices like turmeric, red chili powder, and sambar powder. Finally, pour the tempering over the cooked lentils and garnish with fresh coriander leaves. This South Indian dal tadka is a delicious and tangy option for a satisfying meal.