Soak dal: Rinse and soak 1 cup chana dal overnight.
1 cup chana dal
Blend: In the morning, drain the dal and blend with ingredients mentioned into a slightly coarse, thick batter. Control the water: Start small and only add more if needed.
2 teaspoon ginger-garlic paste, 5 green chillies, 4 teaspoon yogurt, 1.5 teaspoon salt, 1.5 teaspoon citric acid, ¼ teaspoon haldi (optional), ¾ cup water (see note)
Ferment: Transfer batter to a large bowl. Cover and ferment in a warm place for at least 5 hours or overnight (especially in winter). See Note on water.
Set steamer or use pot and plate method with a ring placed inside to hold the plate of batterOnce water is almost boiling, add baking soda to the fermented batter and mix really well to ensure no lumps, the batter will look light and frothy, immediately pour it into the hot steamer plate and steam on high heat for 15 minutes, or until a toothpick comes out clean. Let cool for 10 minutes before cutting into pieces. ½ teaspoon baking soda
Tadka: 3 tablespoon oil, ½ teaspoon Rai, ¼ teaspoon hing, 2-3 green chilies, toss in cut khaman pieces and sprinkle a generous amount of black pepper or as desired, garnish with fresh coriander leaves.
3 tablespoon oil, ½ teaspoon rai, ¼ teaspoon hing, 2-3 green chillies, 1 tablespoon black pepper, 1 handful fresh coriander leaves