• Preheat the Oven: Heat your oven to 375°F (190°C).

Prepare the filling

• Place the apple slices in a mixing bowl. Add the sugar, cinnamon, and lemon juice, then mix well to coat the apples. Set aside while you make the crust.

Make the pie crust

• In a small bowl, whisk together the flour, sugar, and salt.
• Use a fork to cut in the butter until the mixture resembles damp sand.
• Add the water and mix until it all comes together into a dough.
• Add the ice water, a little at a time, and mix until the dough comes together. Turn the dough out onto a lightly floured surface, shape it into a ball, and roll it out into a circle large enough to fit your ramekin or tart dish.

  Pro Tip: To prevent sticking, dust your work surface and the top of the dough with a little flour before rolling it out.
• Lightly butter a 10-ounce ramekin or 5-inch tart pan. Gently press the dough into the pan, trimming any excess. Use a fork to prick the bottom of the crust a few times to prevent it from puffing up during baking.
• Spoon the prepared apple filling into the crust. Dot the top of the apples with small pieces of butter.
• Place the pie in the oven and bake for about 20 minutes, or until the crust is golden brown.

  Let the pie cool slightly before serving.