To prepare dough: Sift flour with baking powder and salt. Add egg yolk, egg, milk and shortening. Mix to make a stiff dough. Divide into 20 pieces and roll each thinly into a circle.
Stuffing or pino: In frying pan, heat oil with paprika and saute onions until soft. Add chilli powder, oregano, cumin and salt. Add meat and mix with onions. Cook until meat is no longer pink.
To prepare empanadas: Place a spoonful of stuffing on half of each dough circle. Add slices of egg, raisins and olives. Fold dough over filling. Wet the edge with milk, fold over again and seal. Bake at 200 ºC until cooked and lightly browned. Serve hot.