Apple Slab Pie

3 and 3/4 cups all-purpose flour (470 grams)

1 1/2 tablespoons sugar

1 1/2 teaspoons table salt

3 sticks unsalted butter (each stick 12 oz or 340 grams), cut into small pieces and kept very cold

3/4 cup very cold water

For the Apple Mixture:

3 1/2 to 4 pounds apples, peeled, cored, and chopped into 1/2-inch pieces (about 10 cups)