Preheat oven to 350°F (175°C). Lightly grease two 9×13-inch baking dishes.

Divide apple pie filling evenly between pans. Sprinkle half of the cinnamon sugar over each.

Evenly distribute snickerdoodle cookie mix on top.

Lightly press the mixture to level.

Drizzle melted butter evenly over the cookie mix in each dish.

Optionally, sprinkle remaining cinnamon sugar on top.

Bake 40–45 minutes, until the top is golden and the apple filling is bubbly.

Cool 10–15 minutes before serving—best enjoyed warm.

Serving Suggestions
Top with caramel syrup, whipped cream, or vanilla ice cream for extra comfort!