Preheat oven to 375°F (190°C) and place a heavy skillet (cast iron preferred) inside to heat up, or grease an 8x8 inch baking pan.

In a large bowl, combine boiling water with cornmeal mix and stir well.

Let the mixture sit for 3-5 minutes to allow the cornmeal to absorb the water.

Add the melted butter, milk (or buttermilk), eggs, salt, and sugar to the cornmeal mixture and combine thoroughly.

Mix in the pinch of baking soda just before baking.

Pour the batter into the preheated skillet or baking pan.

Bake for approximately 40 minutes, or until the cornbread is golden brown.

Remove from the oven and let cool slightly before serving.