Combine your flour, sugar, salt, and baking powder in a large bowl. Stir until everything is evenly distributed.
½ cup sugar, 2 cup flour, 2 tablespoon baking powder, 1 pinch salt
If you wish, you can add some lemon, orange, or citrus zest for additional flavor.
Add the cold butter to your dry ingredients. You can use an electric mixer with a paddle attachment or a pastry cutter to mix the butter into the flour mixture until it resembles coarse crumbs.
⅓ cup butter at room temperature
If you are using an electric mixer, add the egg and knead. If you are making it by hand, make a well in the center of the flour and butter mixture. Break the whole egg into the well. Stir with a fork until just combined.
2 fresh eggs
Knead the mixture gently with your hands just until a dough forms. Be careful not to overwork it, as this can make your dough tough.
Shape the dough into a disc and wrap it in plastic wrap. Refrigerate until hardened.
After chilling, roll out the dough on a lightly floured surface to fit your tart or pie pan.
Transfer the rolled-out dough to your pan, pressing it gently into the bottom and up the sides. Trim any excess dough and chill in the fridge for another 30 minutes before baking.
Pre-bake the crust in a preheated oven if your recipe calls for it. For a fully baked crust, bake until golden brown. For a partially baked crust, bake just until it's set and no longer looks wet.
Once the crust is ready, add your desired filling. Bake according to your specific recipe's instructions.
Let your dessert cool completely before slicing and serving. If desired, garnish with a dusting of icing sugar