Combine dry ingredients in a bowl and stir together until evenly mixed.

Stir in milk, oil, and egg, and mix just until dry ingredients are moistened.

Pour batter into a greased large cookie sheet to form a thin (1/4 inch, approx.) layer.

Bake at 400°F for 10-15 minutes until done (be careful not to overcook the bottom - if the top is still very light when the underside is done, you can put the pan under the broiler for a few seconds to lightly brown it).

When cooked, remove from oven and, using a pizza cutter, score the sheet of cornbread in a grid pattern with each cut being about 1/2 inch wide. Let cool and break apart to form 1/2" sized croutons.