Step 1

Preheat oven to 350 degrees F. and spray a half sheet pan (18x13-inches) with cooking spray.

Step 2

Place pumpkin, evaporated milk, eggs, sugar, caramel sauce, cinnamon and nutmeg into a large mixing bowl. Whisk until well combined. Pour into prepared sheet pan. Sprinkle cake mix over top then drizzle evenly with melted butter. Top with crushed graham crackers.

Step 3

Bake for 45 minutes, or until baked through. Let cool before cutting into squares. Before serving, drizzle each bar with warmed salted caramel sauce. You can also serve with a dollop of whipped cream or scoop of vanilla ice cream.