These are a bit of a fiddle to assemble, but the filling is so quick and easy, the whole thing won’t take you long at all. They’re absolutely delicious served with a cold beer!
Heat the vegetable oil in a large frying pan over a medium heat, then add the onion, mustard seeds, cumin, garam masala and turmeric. Sauté until the onion is soft and translucent, then add the diced potato and cook for a few minutes, stirring to combine.
Add the peas, followed by the boiling water. Bring everything to the boil, then reduce the heat and simmer