Step 1

Oven Preparation: Commence by preheating your oven to a temperature of 350 degrees Fahrenheit (177 degrees Celsius). Concurrently, apply a light coating of grease to a 9x9 inch baking pan to prevent sticking.

Step 2

Combine Ingredients: In a substantial mixing bowl, amalgamate the crushed pineapple (with its juice), granulated sugar, eggs, cornstarch, and vanilla extract. Stir these components vigorously until the mixture is homogeneous and smooth.

Step 3

Assemble in Pan: Transfer the pineapple mixture into the previously greased baking pan. Evenly distribute the small pats of butter across the surface of the mixture, then sprinkle with ground cinnamon to enhance flavor.

Step 4

Baking: Place the prepared pan in the preheated oven. Allow to bake for 45 minutes, or until the perimeter of the mixture begins to exhibit a golden hue, indicating that it is thoroughly cooked and caramelized.