Preheat the oven to 300 °C, or as high as your oven will go. Mix the flour, salt, water, sugar and oil and knead them until well-mixed. You can use a dough machine if you like, although it’s not necessary. Once the dough is formed, wrap it in cling film and leave it to rest for an hour or so.
Finely chop the onion, red pepper, green pepper and parsley and mix together.
Add the salt, black pepper, cumin, oregano and paprika and stir to combine.
Fry the mixture in vegetable oil over a medium heat for 5-10 minutes, until cooked through. Remove from the heat and keep warm.
Unwrap the dough from the cling film and form into palm-sized dough balls. Use a rolling pin to open them up and roll them out into flat, circular pieces. Then, use your hand to carefully stretch the dough on each side in order to form an oval shape.
Scoop the mincemeat filling onto the flat dough and then fold the outer edges in all around the sides, using beaten egg to seal together. When you have finished folding over the edges, brush the egg over the top of the exposed dough.
Place the pideler onto a large oven tray lined with parchment paper, transfer them to the oven and bake for 10 minutes.
Remove from the oven, slice diagonally and serve hot with fresh lemon wedges and a sprinkle of parsley.