Pumpkin Casserole

2 cups pumpkin puree
1 cup evaporated milk
1 cup white sugar
1/2 cup self-rising flour
2 eggs
1 teaspoon vanilla extract
1/2 cup butter
2 pinches ground cinnamon

Preheat oven to 350 degrees F (175 degrees C). Combine the pumpkin, evaporated milk, sugar, flour, eggs, vanilla, melted butter and ground cinnamon to taste. Spoon into a casserole dish.Bake at 350 degrees F (175 degrees C) for 1 hour.