Lawdy! This will make your tongue slap ya brains out! My neighbor shared the recipe with me years ago and it is become one of our family favorites! It is by far one of the most popular recipes in my cookbook! Enjoy!
Preheat oven to 350. Lightly grease a 9x13 baking dish. In large bowl stir together sugar, brown sugar, eggs and oil until smooth. Add flour, vanilla & pecans; mix well. Pour into prepared pan and bake for about 35 minutes.
Note: I sometimes use 1 cup finely chopped pecans and 1 cup coarsely chopped pecans. It's fine either way!