Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C). Grease a 9-inch baking pan.
Combine sugar and butter in a large bowl; beat with an electric mixer until smooth and creamy.
Beat in eggs one at a time, then stir in pineapple and bread cubes.
Transfer mixture into prepared baking dish. Bake in the preheated oven for 1 hour. Let it sit a few minutes to firm up before serving.
