Preheat oven to 425°

In a large mixing bowl, combine all the dry ingredients, set aside.

In a separate bowl, mix the eggs oil and buttermilk. Once blended, add to dry ingredients and mix well.

In a greased 13x9 inch cake pan, pour batter in the center and allow to spread. Once set, place on center rack.

Bake for 30-40 mins, or until a knife comes out cleanly from the center.