In a mixer jar, add 4–5 green chillies, 1-inch chopped ginger, 5–6 garlic cloves, a pinch of salt, ½ tsp cumin seeds, 10–15 curry leaves, and ¼ cup coriander leaves. Coarsely crush without adding water. Keep it aside.
In a mixing bowl, mash 500 grams or 5 medium-sized boiled potatoes and keep aside.
Now, in a pan, heat 2 tbsp oil. Add ¼ tsp mustard seeds, ½ tsp cumin seeds, a pinch of hing, and the prepared masala. Sauté until the oil separates.
Lower the flame and add ½ tsp turmeric powder and ¼ tsp garam masala. Mix well.
Switch off the gas and add the tempering to the mashed potatoes.
Also, add salt to taste, 1 tbsp lemon juice, and some chopped coriander leaves. Mix well.
Aloo masala is ready.
Make round balls from the masala and keep them aside.