Pre-heat oven to 350 degrees F. Spray a 5 by 8 inch loaf pan with nonstick spray. Set aside.

In a large mixing bowl, toss together sugar and lemon zest, until super fragrant. Add in butter. Cream together butter, lemon sugar, and lemon juice for about 3 minutes. You want a light and fluffy texture.

Add the eggs one at a time, then the vanilla extract and whole milk yogurt. Stir in the cornmeal, and the rest of the dry ingredients.

Spoon the batter into the pan, smooth the top, then give the pan a sharp rap to remove any air bubbles. Bake in the center of the oven for 1 hour, or until golden brown.