Roast the Spices: In a dry pan, roast cumin seeds, urad dal, and chana dal until they turn golden brown. This enhances the flavor and adds a nutty aroma to the chutney.
Sauté the Veggies: In another pan, heat oil and sauté the onion chunks, ginger, and whole red chilies for about a minute. The onions should soften and slightly caramelize to bring out their natural sweetness.
Add the Tomatoes: Next, add the chunks of tomatoes, salt, and Kashmiri red chilies. Cook this mixture for 5-6 minutes until the tomatoes break down and become soft and mushy.
Blend the Chutney: Allow the sautéed mixture to cool down. Then, blend it along with the roasted cumin, urad dal, and chana dal to create a smooth paste.
Prepare the Tadka (Tempering): Heat some oil in a small pan, add mustard seeds, whole red chilies, and fresh curry leaves. Let them sizzle for a minute, then pour this tadka over the chutney.
Serve: Your spicy and tangy Karam Chutney is ready! Serve it with dosa, idli, or uttapam and enjoy!