Preheat your oven to 400°F (200°C).

Grease a 9-inch square baking pan or line it with parchment paper for easy removal and cleanup.

In a large bowl, combine one box of Jiffy Cornbread Mix with one cup of buttermilk and two large eggs.

Stir gently until just combined—this keeps your cornbread light and fluffy.

Carefully fold in the diced fresh jalapeño, shredded cheddar cheese, a quarter cup of Mexican spice blend, and, if desired, a half cup of corn kernels for extra sweetness and texture.

Pour the batter evenly into your prepared pan.

Bake for 20-25 minutes. To test for doneness, insert a toothpick into the center; it should come out clean or with a few moist crumbs.

Remove the pan from the oven and let it cool for about 5 minutes on a wire rack.

Slice into squares or wedges for a perfect serving.

Rest the Batter: Allowing the batter to sit for a few minutes before baking can enhance the flavor and texture.

Customize Your Flavor: Experiment by adding diced bell peppers or a sprinkle of cilantro for an extra burst of freshness.

Serving Suggestions: Enjoy your cornbread warm with a side of sour cream, salsa, or guacamole for a complete meal.