In Schaffhausen, the most famous and traditional one is what is called "Schaffhauser Boelle Tuenne", which means "Onion Tarte from Schaffhausen" its a very traditional food staple. I usually make this one from time to time, but I had some leeks and some Canadian Bacon I didn't want to go to waste so I used them instead of just using onions.
Here is what you need for the crust:
200 g flour, 1/2 teaspoon salt, 75 g butter cut in cubes, 100 ml water
Mix flour and salt in a bowl, add the butter and work the butter into the flour with your fingers until you have small crumbles (kinda looking like parmesan crumbs), then add the water and work it quickly into a soft dough (don't knead), flatten it out a little, cover it and let it rest in the fridge for about 30 minutes.
Once the dough is cool, take it out of the fridge and with a rolling pin , roll it to an about 3 mm thick round. Transfer into a round tart pan , and prick the crust all over with a fork, put back into the fridge for about 15 min.
Prepare the filling. I used
3 stalks of leeks (cut in thin rings), 2 thick slices of Canadian bacon (cut in small cubes). To do this I use either a large Chef's Knife
For the custard mix 100 ml milk, 100 ml cream, 1 large egg, salt, pepper, garlic powder, smoked paprika and I added some fresh grated parmesan.
Take the crust out of the fridge and evenly spread leeks and bacon on the crust, then pour the custard mix evenly over the filling. Bake in the lower half of a preheated (425 Degrees) for about 30 min.
Remove from the oven, let cool slightly and serve warm with a nice green or mixed salad and a nice glass of white wine. A Riesling or Chardonnay will work very well!
Bon Appetit!
You can use the same crust recipe to make a sweet tart as well. For example with apples, apricots or plums. after cooling the crust in the fridge, sprinkle it with ground almonds or hazelnuts.
Then layer fruit in a shingle pattern on the crust until covered, mix the custard, but instead of all the spice, mix in 3 tablespoons of sugar and maybe some vanilla flavor or cinnamon, pour the mixture over the fruit and bake as above adding about 10 minutes of baking time to soften the fruit.
YUMMY!!!