Combine flour and salt in a bowl.

Add the melted butter or margarine, and rub it between your fingertips until it resembles fine breadcrumbs.

Add the warm water and mix it together to form a soft dough. Knead until the dough is smooth and elastic... for about 3-4 minutes.

Cover with a clean cloth and leave aside while you prepare the filling.

Heat oil in a pan on medium heat. Add onion and cook until soft. Once the onion is soft , add the diced bell peppers and cook for 5 minutes. Put in the chilli powder or cayenne pepper if using.

Add the sweetcorn and cook for about 5 to 10 minutes. Season to taste

Remove from the heat and crumble the feta over the cooked sweetcorn and pepper mix.

Break off 10 equal sized pieces from the dough. Using a rolling pin, roll out each piece into a six inch disk. Cut the disk in half. Place a teaspoon of the cooked filling onto the pastry on one half and fold over to form a triangle and to cover. Seal by making a small fold on the edges. Do the same for the rest of the pastry.

Heat enough oil on medium to deep fry the filled pastries. Fry for about 4 to 5 minutes on each side, until golden brown.

Remove from oil and drain the pastries on paper towel and serve warm