Easy Caramel Pumpkin Crumb Cake

Name: Easy Caramel Pumpkin Crumb Cake
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 (15.25-ounce) box spice cake mix; 1 (15-ounce) can canned pumpkin; 2 large eggs; 2 cups all-purpose flour; 1 cup firmly packed light brown sugar; 1/2 teaspoon salt; 2 teaspoons ground cinnamon; 12 tablespoons unsalted butter, melted; 1 jar caramel sauce (I used caramel ice cream topping.)