The Best Pineapple Bake

Preheat oven to 350 degrees F and grease a 9×9 baking pan.
In a large bowl, combine pineapple, sugar, eggs, cornstarch, and vanilla. Mix until well combined.
Transfer mixture to the prepared baking pan and top with the butter pans and cinnamon.
Bake for 45 minutes or until edges begin to turn golden.