Vada Pav: Potato Fritter Sandwich | TASTE

Ingredients

• 3 russet potatoes
• 2 tbsp vegetable oil, plus more for deep-frying
• 1 tbsp brown mustard seeds
• 1 tsp cumin seeds
• ½ tsp hing (asafetida)
• 4 fresh curry leaves
• 1 tsp ground turmeric
• ½ tsp Kashmiri or other red chile powder
• 1 inch piece fresh ginger, peeled with a spoon and finely chopped
• 2 garlic cloves, minced
• Kosher salt
• ½ c lightly packed finely chopped fresh cilantro leaves
• 2 tsp chaat masala
• Fresh lime juice
• 1 c chickpea flour (besan)
• 1 tsp ground coriander
• 1 tbsp unsalted butter
• 4 flaky white buns, such as potato or brioche buns
• Green Chutney
• Coconut Chutney, store-bought or homemade
• Pan-fried serrano chiles (optional)