Pre-heat your oven to 375 degrees. Grease an 8 x 13 inch casserole dish.

In a large 2-cup measuring cup, add two tablespoons vinegar. Add enough milk so that you have 2 full cups of liquid. Set aside.

In a large bowl, pour in melted butter. To the melted butter, add in sugar and stir well.

Whisk in eggs.

In another bowl, combine milk/vinegar mixture with baking soda. Pour into butter/egg mixture. Add in cornmeal, salt, and flour. Stir until most of the clumps are worked out.

Pour into greased 8 x 13 inch casserole dish and bake for about 35 minutes, or until a toothpick inserted in the middle comes out clean.