Samosas are so much better fresh from the pan ... Make a well in the centre and add the vegetable oil and onion seeds and 35–50ml/1–2fl oz cold water to bring together to make a firm dough.
Brush the outer surface with more butter. Place onto a baking sheet and cover while you make the rest of the samosas. Sprinkle over a few sesame seeds, if using. Bake in the centre of the oven for ...