Pour flour into a bowl, add salt and stir.
Cut the butter into cubes and add it to the bowl.
Rub the butter and flour together with your fingers until it resembles grated cheese.
Add water and gather the dough into a ball.
Wrap the dough in plastic wrap and refrigerate until needed.
Halve the onions and slice them thinly.
Slice the cabbage thinly.
Cut the apple into slices or cubes.
Preheat the oven to 200 degrees Celsius (392 degrees Fahrenheit).
Sauté the pointed cabbage for a few minutes on high heat and set it aside.
Sauté the onions in butter over medium heat until soft, push them to one side of the pan and then sauté the bacon on the other half.
Add butter when the bacon is almost done and let it melt.
Add curry and stir the onions and bacon together with the curry.
Remove the pan from the heat, stir in the cabbage and apples, and mix well.
Roll out the tart dough thinly, about 2-3 mm, place it in a tart pan, and trim the excess dough (use it as decoration for the tart, if desired).
Prick the bottom with a fork and prebake it for 5-8 minutes in the oven.
Whisk eggs, cream, salt, and pepper together.
Add the vegetable mixture to the tart and pour the egg mixture over it.
Sprinkle with thyme or za'atar and decorate with any leftover dough.
Bake in the oven for 30-35 minutes.