Preheat and Prepare: Preheat your oven to 350 degrees Fahrenheit, ensuring it reaches the desired temperature before assembling the casserole. While the oven heats up, lightly grease an 8x8 baking pan to prevent the corn casserole from sticking during baking.
Mix the Ingredients: In a spacious mixing bowl, combine the Jiffy cornbread mix, cream corn, drained corn kernels, sour cream, melted butter, diced jalapeño, and the egg. Stir the ingredients with care until a harmonious blend forms. Make sure all components are evenly distributed throughout the mixture, ensuring every bite is bursting with flavor.
Transfer to the Pan: Once the mixture is well combined, pour it into the prepared greased baking pan. A spatula spreads it evenly, ensuring uniform thickness across the pan's surface. This step is crucial for even baking and a consistent texture.
Bake to Perfection: Slide the pan into the oven and let it bake for around 55 to 60 minutes. While it bakes, keep an attentive eye on the casserole. To check for doneness, insert a fork into the center; the soup is ready to shine if it emerges clean.
Cool and Serve: As the delightful aroma wafts through your kitchen, remove the baked corn casserole from the oven and allow it to cool for a few minutes. This short resting period permits the flavors to meld together, creating an irresistible taste experience.
Savor the Flavor: Finally, the moment arrives to serve this masterpiece. Arrange the Cornbread Soufflé alongside your favorite holiday dishes. The rich and creamy texture, accentuated by the gentle heat of the jalapeño, promises an unforgettable culinary adventure for your family and friends.