Preheat your oven to 400F (200C) and line a standard 12-cup muffin tin with paper liners or lightly grease it.
In a large mixing bowl, whisk together the cornmeal, all-purpose flour, granulated sugar, baking powder, and salt until evenly distributed.
In a separate medium bowl, whisk the whole milk, melted unsalted butter, and large eggs until thoroughly combined.
Pour the wet mixture into the dry ingredients. Gently fold them together using a spatula until just incorporated. Do not overmix, as this can cause toughness.
Divide the batter evenly among the 12 prepared cups, filling each about two-thirds full.
Bake in the preheated oven for 15 minutes, or until the tops are golden brown and a toothpick inserted into the center comes out clean. Let cool in the pan for 5 minutes before transferring to a wire rack.