Preheat the oven to 375 degrees F and grease a 12-well muffin tin. Set aside.
In the bowl of a stand mixer with a paddle attachment, cream together the butter and sugar on medium speed, about 2-3 minutes or until white and fluffy. This can be done with a hand mixer as well. 113 grams unsalted butter, softened, 210 grams sugar
One at a time, add the eggs. Continue to mix on medium speed until the egg mixture is light and fluffy with a pale yellow color, about 3 minutes.
2 eggs
While mixing on low, add the cornmeal to the egg mixture until thoroughly combined.
175 grams white or yellow cornmeal
In a liquid measuring cup, whisk together the milk and sourdough discard until smooth.
240 grams milk, 240 grams sourdough discard *see notes
Then, in a medium bowl, sift the flour, baking powder and salt together.
140 grams all-purpose flour, sifted, 6 grams baking powder, 3 grams salt
Alternate adding the dry ingredients and wet ingredients to the stand mixer while mixing on low. Stop mixing once the flour has just been incorporated.Be careful not to overmix the batter, otherwise this will cause it to become heavy and dense. Long Fermentation - If you prefer to long-ferment the batter, cover the mixing bowl and place it in the fridge overnight. Pull the batter out of the fridge about 30 minutes before baking to come to room temperature.
Fill each well about ¾ full. This cookie scoop worked perfectly! You will have to bake these muffins in batches. Bake for 15-17 minutes or until a toothpick comes out with a few cornmeal bits, but no wet batter.
Leave in the muffin tin for 5 minutes. Serve them warm and enjoy!