1.

In a large bowl, combine cornmeal, all-purpose flour, baking powder, salt, and sugar until evenly mixed.

2.

Create a well in the center of the dry mixture, then pour in the buttermilk, crack the eggs, and add melted butter.

3.

Stir the wet and dry ingredients together until just combined without overmixing to ensure tender waffles.

4.

Fold in the shredded cheddar cheese and diced jalapeño gently to distribute evenly throughout the batter.

5.

Preheat your waffle iron according to the manufacturer’s instructions, ensuring it's hot before pouring batter.

6.

Pour an appropriate amount of batter onto the heated waffle iron, spreading it slightly for even cooking.

7.

Close the waffle iron and cook until the waffles are golden brown and crispy, about 4-5 minutes per waffle.

8.

Carefully remove the waffles using tongs or a spatula, and place them on a wire rack to prevent sogginess.

9.

Serve warm, optionally topped with butter, maple syrup, or additional jalapeño slices for extra spice.