Soak 1 cup dried white peas (safed matar) in enough water (around 3 cups) overnight. Then in the morning, rinse and drain the water.Transfer the peas to the inner steel pot of your Instant Pot, add 1.5 cups (12 oz) water, 1/2 teaspoon salt and stir.
Close the pot with the lid and press the pressure cook button. Cook on high pressure for 15 minutes or if you prefer much softer peas do 20 minutes (with the pressure valve in the sealing position).Let the pressure release naturally.Open the lid and then using a strainer drain the water in which the peas were pressure cooker. But retain like 2 tablespoons of water so that the peas remain little moist and not become completely dry.
Transfer to a large bowl and then add to it- chopped onion, chopped tomato, green chili, ginger juliennes, chopped cilantro, cumin powder, kala namak and chaat masala.
Also add the sweet tamarind chutney and cilantro chutney. Mix everything together until it's all well combined. Serve matar chaat with kulcha or as a snack.
Stove-top Pressure Cooker Instructions
If you want to use a regular stove-top pressure cooker, soak the peas overnight and then cook for 4-5 whistles on medium-high heat. Follow rest of the steps as it is.
Matar chaat can be served warm or cold. Serve warm when serving it with kulcha.
Spices levels can be adjusted to taste. Add more chopped green chilies for a spicier chaat.
To make it in advance, boil the peas and keep them refrigerated. They will be okay in the refrigerator for few days. When ready to eat, simply mix everything together and serve.