Celebrate National Apple Month with a delicious Apple Slab Pie. Perfect for a crowd, this easy treat is baked on a sheet tray instead of in a pie pan.  Roll out the dough and fill with apples and cinnamon, add a top crust, bake, and finish it with a drizzle of vanilla glaze. We like to serve it with a side of cinnamon swirl gelato.

For the pie crust:
4 cups all-purpose flour, we recommend White Lily
2 teaspoons salt
4 tablespoons sugar
3 sticks cold unsalted butter, cut into small cubes
7 tablespoons vegetable shortening, cut into small cubes
6-8 tablespoons cold water

For the filling:
4 pounds Granny Smith, and Honey crisp apples
1 cup sugar
2 tablespoons lemon juice
¼ cup cornstarch
3 teaspoon cinnamon
Pinch salt

1 tablespoon milk
Turbinado sugar for sprinkling

For the Glaze:
1 cup confectioners’ sugar, sifted
2-4 tablespoons whole milk
1 teaspoon pure vanilla extract
Vanilla Gelato or ice cream for serving

Put the flour, sugar, and salt in a food processor fitted with a metal blade; pulse to combine the ingredients. Add the butter and shortening and pulse only until the butter and shortening are cut into the flour, and the butter is the size of peas. Run the machine while adding the ice water, then pulse until the dough gathers together. Scrape all the dough onto a floured work surface and gather it into a large ball with your hands. Cut it in half and pat each half into a thick rectangle shape. Sprinkle each rectangle with a little flour, wrap in plastic wrap, and refrigerate for at least four hours or overnight.

Peel and core the apples; cut them into 16 thin slices per apple. In a large mixing bowl, combine the apples, sugar, lemon juice, cornstarch, cinnamon, and a pinch of salt.

When ready to bake:  Roll out one of the rectangles of dough into a thin rectangle about 12×18”. Gently transfer the dough to a parchment lined sheet tray. Spread the apples evenly over the surface of the dough, leaving a 2” edge. Discard any remaining liquid in the bowl.

Remove the remaining rectangle of dough from the fridge and roll it into a large rectangle roughly the size of the other crust. Place over the other crust and crimp the edges.

Place the pie in the refrigerator for at least 30 minutes, preferably an hour. Preheat the oven to 375˚F.

Brush the top of the pie with the milk and sprinkle with turbinado sugar. Place in the oven and bake for 50 to 60 minutes, or until the top is golden and the center of the pie is bubbling. Remove and cool the pie completely before glazing, about one hour. 

To Make the Glaze:

Add to the confections sugar two tablespoons of milk and the vanilla extract. Whisk to combine. Add only enough additional milk until you get a thick glaze. Drizzle over the cooled pie. Let the glaze set, then cut and serve warm with vanilla gelato or ice cream. Makes 12 servings.