Preheat the oven to 350ºF (177ºC) and prepare a muffin pan by lining it with paper or silicone liners.
Add the flour, cornmeal, granulated sugar, baking powder, and salt into a large bowl and whisk to combine.
Add the eggs to a medium-sized bowl and whisk until frothy. Add in the honey, milk, and melted butter and whisk everything together until well combined.
Add in the sourdough discard and whisk just until combined.
Add the milk and egg mixture to the cornmeal and flour mixture, and whisk until it begins to come together. Then fold everything together using a silicone spatula, just until all the flour and cornmeal has been moistened.
Spoon or scoop the batter into the prepared muffin cups until they are almost full. Distribute evenly over the 12 muffin cups.
Bake for 18-20 minutes, or until the edges are lightly golden and the centers are set. To test, insert a cake tester or toothpick into the middle - if it comes out clean the muffins are ready.
Remove from the oven and allow to cool in the pan for 5 minutes before transferring to a wire rack OR serving warm.