Preheat oven to 400 degrees. Note: The cornbread recipe has to be made first and then added to the recipe.
In a bowl, combine 2 boxes of Jiffy Cornbread Mix, 1 cup yellow cornmeal, two eggs, buttermilk, whole milk, ground sage, and celery seed.
Mix well until all ingredients are combined, and pour into a baking dish brushed with olive oil or melted butter.
Bake for 15 – 20 minutes at 400 degrees or until a toothpick inserted into the center comes out clean, and the top is golden brown.
Allow the cornbread to cool and break apart.