Yes, mustard oil is highly suitable and commonly used for tempering, especially in Indian cuisine, due to its pungent flavor and high smoke point.
Tempering, also known as 'tadka' or 'chhonk,' involves heating oil or ghee and then adding spices to it. This process releases the essential oils and flavors of the spices, which are then infused into the dish. Mustard oil's distinct flavor profile adds a unique dimension to tempered dishes. Its high smoke point makes it ideal for high-heat cooking methods like tempering, as it can withstand the heat without breaking down and producing harmful compounds. When tempering with mustard oil, it's crucial to heat it until it reaches its smoke point to eliminate its raw, pungent smell and bitterness. Once the oil is hot, you can add your spices, such as cumin seeds, mustard seeds, dried chilies, and asafoetida. The spices will sizzle and release their aroma, creating a flavorful base for your dish.
Always heat mustard oil until it smokes before adding spices. This removes the raw, acrid taste and ensures a pleasant flavor in your tempered dish. If you don't heat it enough, the dish can have an unpleasant, overpowering mustard flavor.