Step-by-Step Instructions

1. 1.Prepare the Mashed Potatoes

   Take the boiled and peeled potatoes in a bowl. Mash them thoroughly with a fork until smooth.

2. 2.Season the Potatoes

   Add salt to taste, 1 teaspoon of turmeric powder, 1 teaspoon of cumin powder, 1 teaspoon of chili powder, 1 teaspoon of coriander powder, and 1/2 teaspoon of black pepper to the mashed potatoes. Mix all the spices well into the potatoes until evenly combined.

3. 3.Prepare the Onion Mixture

   Heat 1 tablespoon of cooking oil in a pan over medium heat. Add 1 teaspoon of cumin seeds and let them splutter. Then, add 1/2 cup of finely chopped onion and fry for approximately 5 minutes until they turn translucent and slightly golden.

4. 4.Add Aromatics and Herbs

   Add chopped fresh green chilies (to taste) and 1 tablespoon of ginger-garlic paste to the pan. Fry for another 2 minutes until the raw smell of ginger-garlic disappears. Turn off the heat and stir in 1/4 cup of chopped cilantro (coriander leaves). Mix well.

5. 5.Combine Mixtures

   Add the fried onion and spice mixture to the seasoned mashed potatoes. Mix thoroughly with a fork until all ingredients are well incorporated.

6. 6.Assemble the Sandwich

   Take two slices of white bread. Place one cheese slice on each bread slice. Spread a generous and even layer of the potato mixture over one of the cheese-covered bread slices. Place another cheese slice on top of the potato mixture, then cover with the second bread slice to complete the sandwich.

7. 7.Pan-Fry the Sandwich

   Melt 1 tablespoon of butter in the same pan used for the onion mixture over medium-low heat. Place the assembled sandwich in the pan. Cook for approximately 2.5-3 minutes, pressing gently with a spatula, until the bottom is golden brown. Flip the sandwich and cook the other side for another 2.5-3 minutes until it's also golden brown and the cheese has melted.

8. 8.Serve

   Once cooked, remove the sandwich from the pan. Cut it into halves or triangles and serve immediately.