This Apple Slab Pie recipe is a simple way to make an apple pie that feeds a crowd and is 100% delicious with warm spices of cinnamon, nutmeg, and cloves. Using ready-made crusts speeds up the process and delivers a fabulous pie everyone will love.
Preheat the oven to 375°F. Unroll and stack 2 pie crusts on top of each other on a lightly floured surface. Roll to an 18 x 12-inch rectangle. Lay the crust into an ungreased 15x10x1-inch pan, and press into the corners. Do not trim pie crust edges.
In a large bowl, mix apple slices, sugar, cornstarch, cinnamon, nutmeg, cloves, and salt until well-mixed. Spread the apples evenly in the pastry-lined pan.
Unroll and stack the remaining 2 pie crusts on a lightly floured surface. Roll to an 18 x 12-inch rectangle and lay carefully over the apples in the pan.
Trim the edges if needed and roll the pastry up to seal the edges together, forming a rolling. The corners can get skimpy so you may need to add additional pastry and pinch them together. Then flute or crimp the pastry edges. Brush with the beaten egg and sprinkle with an additional 2 teaspoons of sugar if desired.
Bake for 40 to 45 minutes or until the crust is golden, the filling is bubbly, and the apples are soft. Cool completely before cutting into servings; about 1 hour.
Notes
Storing the Slab Pie
The pie can easily serve 24 and keeps well in the refrigerator for up to 4 days.