Apple Pie Cake

2 cups all-purpose flour
1 cup packed light-brown sugar
2 tsp. ground cinnamon
1 cup (2 sticks) unsalted butter
5 pounds tart apples, such as Granny Smith (about 10-12)
2 TBS. freshly squeezed lemon juice

In a large bowl, combine the flour, brown sugar, and 1 teaspoon cinnamon. Using an electric mixer or a pastry cutter, cut in the butter until the mixture forms pea-size pieces. Press two-thirds of the crumb mixture into the bottom and 1 inch up the sides of a 9-inch springform pan.
Preheat the oven to 350 degrees. Core and peel the apples. Cut into thin slices, and place in a large bowl. Toss the apple slices with the remaining teaspoon cinnamon and the lemon juice. Arrange apples in the prepared pan; they will come up over the sides of the pan. Sprinkle the remaining crumb mixture over the apples.

Place pan on an aluminum foil–lined baking sheet, and bake until cooked through and golden brown on top, about 1 hour and 15 minutes. Run a knife around the edge of the pan, and let the cake cool in the pan to set. Serve, or refrigerate for 2 hours to set more firmly. Serve at room temperature. (recipe and picture from marthastewart.com)