Pumpkin Dream Bars

Name: Pumpkin Dream Bars
Cook time: 2 h
Total time: 2 h
Cuisine: American
Ingredients: Cooking spray, for pan; 2 1/2 c. Gluten Free Honey Nut Cheerios cereal; 3 tbsp. granulated sugar; 1/3 c. butter, melted; Pinch kosher salt; 2 eggs; 1/2 c. packed brown sugar; 1 (15-oz.) can pumpkin; 1 (12-oz.) can evaporated milk; 1 tsp. ground cinnamon; 1/4 tsp. ground ginger; 1 tsp. pure vanilla extract; 1/2 tsp. kosher salt; Powdered sugar, for dusting