Step 1Heat the oven to 425 degrees.
Step 2In a large bowl, whisk together the flour, cornmeal, baking powder and salt. Separately, in a medium bowl, whisk together the milk, egg and butter.
Step 3Whisk the milk mixture into the flour mixture and pour into a greased 8-inch square pan. Bake until pale golden and a toothpick inserted in the center comes out clean, about 20 to 25 minutes.
Step 4Cool 5 minutes, invert on a rack and cool completely.
Step 5Turn the oven down to 350 degrees. When the bread is cool, cut it into rough 1-inch cubes and place them in a baking pan. Bake, stirring occasionally, until the bread is dry and deep golden, about 20 minutes. (Recipe can be prepared to this point 1 day in advance and stored at room temperature.)
Step 1Heat the oven to 350 degrees.
Step 2Heat the oil in a large skillet over medium high heat and saute the celery and onion until barely tender, about 5 minutes, stirring occasionally. Remove from heat and cool slightly.
Step 3Combine the celery, onion, corn bread, cracker meal, seasoning salt, celery salt, eggs, milk, broth and pepper in a large bowl. Mix well and place in an oiled 9-by-13-inch baking dish.
Step 4Bake until the top is golden brown, about 45 minutes.