Serve with the Beef and Potato Dish .
In large bowl, cover Boondi puffs with water, then drain. Set aside. Put onion in another bowl, sprinkle with salt and mix thoroughly. Let onion sit for 15 min, then rinse with water. Add yogurt, and milk to the onion. Sprinkle with salt. Gently stir in tomato, boondi puffs, diced chili pepper, potato, and garam masala. Stir gently to combine.