Cheddar-Jalapeno Cornbread

Preheat oven to 400 degrees. Butter an 8-inch square baking pan. In a large bowl, stir together cornmeal, flour, sugar, baking powder, salt, and baking soda. In a medium bowl, whisk together melted butter, buttermilk, and eggs. Add buttermilk mixture to flour mixture and stir just until combined (do not overmix). Stir 1 1/4 cups grated cheddar, corn kernels, and jalapenos into batter. Transfer batter to pan and smooth top. Top with 1/4 cup grated cheddar.

Bake until a toothpick inserted in center comes out clean, 20 to 25 minutes. Let cool in pan on a wire rack, 15 minutes, before serving.