- To begin, hard boil the eggs. Peel and make gashes along the length so that the masala can soak in. 
- Prepare the vindaloo paste by grinding together Kashmiri red chillies, ginger garlic paste, cinnamon, cloves, peppercorns, cumin seeds, coriander seeds, and fenugreek seeds with white vinegar into a smooth paste. Add a bit of water if required. You can de-seed the chillies if you want it less spicy. Keep aside. 
- Heat 1 tbsp of oil in a pan. Saute the eggs until they lightly colorize. This adds extra flavor to the egg curry. 
- In the same pan, heat 2 tbsp of oil. Add in the chopped onions and saute until translucent. 
- Add the vindaloo paste, salt, and turmeric powder. Mix well and cook until the oil begins to appear on the sides. 
- Now add in the boiled eggs and mix until they are well coated. Add water to make the gravy and bring it to a boil. 
- Add in the tamarind paste and brown sugar. Mix well, reduce the heat, and continue to cook for a few minutes. 
- Adjust the gravy as per your taste. Check the salt and add more if required. The Hot & Spicy Egg Vindaloo is ready to serve.