Use instant pumpkin spice pudding mix, not cook-and-serve pudding, to ensure the filling thickens properly without heating.

Cold whole milk provides the richest and creamiest texture. Lower-fat milk can be substituted, but the filling may be slightly less creamy.

Make sure the Cool Whip is completely thawed in the refrigerator before folding it into the pudding.

For the best results, prepare the pie the night before serving and refrigerate overnight for firmer, easier-to-slice layers.

For a chocolate variation, replace the graham cracker crust with a chocolate cookie crust and garnish with mini chocolate chips.

For extra fall spice flavor, substitute a gingersnap cookie crust or add a small pinch of cinnamon, nutmeg, or ground ginger.

For a caramel pumpkin pie, drizzle caramel sauce over the topping just before serving and sprinkle with chopped pecans.

For individual servings, divide the filling among mini graham cracker crusts and refrigerate until set.

For a nut-free version, omit the pecans and garnish with cinnamon or crushed graham crackers instead.

Homemade stabilized whipped cream can replace Cool Whip, although the filling may be less stable if regular whipped cream is used.

Store the pie tightly covered in the refrigerator at 40°F (4°C) or below for up to 3 to 4 days. Enjoy within 2 days for the best crust texture.

To freeze, wrap the chilled pie tightly in plastic wrap and aluminum foil and freeze for up to 1 month. Thaw overnight in the refrigerator before serving. The texture may soften slightly after thawing.

Serve chilled without reheating, as warmth will soften the pudding and whipped topping.

Add chopped pecans immediately before serving to preserve their crunchy texture.

This recipe uses pumpkin spice pudding mix rather than real pumpkin puree. Adding pumpkin puree may affect the filling consistency and setting time.