1Preheat oven to 180°C (approximately 350°F).
2In a bowl, add flour and make a well in the middle.
3Place eggs, butter and a pinch of salt in the well.
4Mix with hands until you dough is smooth.
5If the dough sticks to hands, slowly add more flour and knead until no longer sticky.
7Heat oil in a saucepan and sauté onion.
8Add carrots, spinach and leek.
9Season with salt, pepper and curry.
10Cook until carrots are done.
11Add corn flour and mix well.
13Sprinkle work surface with flour.
14Roll out dough and cut out large, equal circles.
15Cut two circles for each pie, or 28 circles.
16Grease pans with margarine and dust with flour.
17In each pan, press dough into pan so that it overflows.
18Add a full tablespoon of filling and top with another circle of dough.
19With fingers, join bottom circle to the top one and press into place with decorative folds. Brush with beaten egg yolk and bake for 15-20 minutes, or until golden brown.