Stuffing
3 tablespoons of olive oil
2 medium onions, sliced into thin rounds
1 teaspoon of salt
4 eggs
250g cream cheese
200g ricotta cheese passed through a sieve
3 tablespoons of grated Parmesan cheese
Dough
2 cups of all-purpose flour
1/2 cup of unsalted butter
1 egg yolk
3 tablespoons of milk
1/2 teaspoon of salt
Stuffing
3 tablespoons of olive oil
2 medium onions, sliced into thin rounds
1 teaspoon of salt
4 eggs
250g cream cheese
200g ricotta cheese passed through a sieve
3 tablespoons of grated Parmesan cheese
Dough
2 cups of all-purpose flour
1/2 cup of unsalted butter
1 egg yolk
3 tablespoons of milk
1/2 teaspoon of salt
Stuffing
Heat the olive oil in a non-stick skillet over medium heat and cook the onions until they start to brown
Season with salt, remove from heat, and let cool
With an electric mixer or whisk, beat the eggs, cream cheese, ricotta cheese, and Parmesan cheese together
Add the cooled onions and mix well
Dough
Mix the flour with the butter, breaking it down until you have a crumbly mixture
Beat in the egg yolk, milk, and salt until a smooth dough forms
Grease a medium-sized tart pan with a removable bottom with the dough, then spread the stuffing over the dough
Bake in a preheated oven at 180°C until the top is golden brown.