Prepare the Oven and Pan: Heat the oven to 375°F and lightly coat a 13 x 9-inch baking pan with cooking spray.
Combine the Main Ingredients: In a large bowl, combine the cornmeal, salt, softened butter, beaten eggs, and 1 cup of the milk. Mix thoroughly for at least 5 minutes until the ingredients are well incorporated. Add the Remaining Milk: Pour in the remaining 1 cup of milk and continue mixing for another 5 minutes, making sure the mixture is thoroughly combined.
Fill the Baking Pan: Transfer the prepared cornmeal mixture to the greased pan and spread it into the pan.
Bake Until Golden: Place the pan in the preheated oven and bake until the cornbread is golden and crumbs stick to a toothpick when tested.
Cut into Squares: Remove the pan from the oven, cut the cornbread into squares while leaving the pieces in the pan, then return the pan to the oven.
Finish Baking: Bake for another 5 to 10 minutes, bringing the total baking time to 50 to 60 minutes. The finished cornbread should have a crusty surface and crisp sides. Serve Warm: Remove the finished Serbian corn bread from the oven and serve it warm.