Preheat oven to 350 degrees
In a large mixing bowl, mix the eggs oil, milk, and vanilla together.
In a smaller bowl, mix flour, sugar, baking powder, and salt.
Add the dry ingredients to the wet ingredients and mix well, then pour half the batter into the prepared baking dish.
Iin a medium bowl, combine brown sugar and cinnamon and mix well.
Sprinkel half of the cinnamom sugar layer. Sprinkle the remaining cinnamon sugar mixture over the top.
Drizzle the melted butter ovr the top, as desired.
Bake for 35-40 minuted and serve warm.