Creating Pineapple Juice Cake is both straightforward and enjoyable. Follow these simple steps carefully to ensure success:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan or line it with parchment paper for easier removal.
2. Mix Dry Ingredients: In a large mixing bowl, combine the yellow cake mix and the drained crushed pineapple.
3. Add Wet Ingredients: Pour in the pineapple juice, vegetable oil, and vanilla extract. Mix until everything is well combined and there are no lumps.
4. Incorporate Eggs: Add the eggs one at a time, mixing well after each addition until smooth.
5. Add Coconut: If you’re using shredded coconut, fold it into the batter gently using a spatula.
6. Pour Batter: Pour the batter into the prepared baking pan and spread evenly.
7. Bake: Bake in the preheated oven for 35-40 minutes or until a toothpick inserted in the center comes out clean.
8. Cool: Remove the cake from the oven and allow it to cool in the pan for 20 minutes. Then move it to a wire rack to cool completely.
9. Prepare the Glaze: In a small bowl, whisk together the powdered sugar and milk until smooth. Adjust the consistency as needed.
10. Glaze the Cake: Once the cake is cooled, drizzle the glaze over the top, allowing it to soak slightly into the cake for added flavor.

Following these steps will ensure you create a delicious Pineapple Juice Cake that everyone can enjoy.