How to Make It
In a bowl, mix the olive oil, chopped garlic, black pepper and salt, keep aside. Cut the eggplant into 5mm thick round slices, mix in the above marinade.
Boil the potatoes. Cool and grate. Heat the oil in a sauté pan, add the cumin seeds and let them crackle. Sauté the onions till soft. Add the ginger, green chilies along with the tomatoes, red chili and turmeric powder. Cook over medium heat till the tomatoes are mashed. Add the grated potatoes, chaat masala, lemon juice and salt. Mix well and keep aside.
Melt the jaggery in a sauce pan over a low flame. When the jiggery starts to change color add the red chili flakes, coconut milk and bring to a boil. Finish off with lemon juice, salt and chopped peanuts.
Cook the eggplant slices on a hot flat griddle on both sides till golden brown. Heat the spiced potato mix separately. Sandwich the eggplant slices (at least 4 slices to a portion) with the potato mix. Drizzle the warm jaggery and peanut sauce over the eggplant. Garnish with chopped cilantro.