||Pre-heat the oven to 200ºC.
||Heat oil in a pan, add onions and spices and stir for about 2 minutes. Add minced beef and stir until browned. Add olives and season to taste with salt and pepper, before leaving to cool.
||Cut rounds out of the pastry with a medium-size circle cutter. Brush the borders with the egg. Place 2 tablespoons of the beef mixture in the centre of each circle, discarding excess liquid to prevent pastry becoming soggy.
||Fold pastry in half over the filling and press the borders with a fork or fingers to seal tightly.
||Place the empanadas on a baking tray lined with baking paper. Brush each with remaining egg to colour and then cook for 15-20 minutes.