Cheesy Potato Balls (Cheesy Alu Banda)

Ingredients

• Filling:
• 2 potatoes, such as Maris Piper, Desiree, or Yukon Gold, peeled and cut into ½-inch pieces
• 1 tablespoon sunflower oil, plus extra for deep-frying
• 1 green chile, finely chopped
• 10 fresh curry leaves, finely chopped
• 1/2 teaspoon black mustard seeds
• 1/2 teaspoon table salt
• 1/2 teaspoon chili powder
• 1/2 teaspoon ground turmeric
• 30 gram (1 ounce) cheddar cheese, cut into small cubes
• Batter:
• 100 gram (3½ ounces) gram flour (besan/chickpea flour)