Baked Pineapple

1 large can crushed pineapple
1 cup sugar
2 tablespoons cornstarch
2 beaten eggs
1/4 cup water
1 teaspoon vanilla
Cinnamon to taste
Butter to taste

Combine all ingredients
Place in casserole and top with dots of butter
Sprinkle with cinnamon
Bake at 350 degrees for one hour