In a large mixing bowl, stir together until smooth, brown and white sugars, eggs and vegetable oil. Stir in flour and vanilla. Add pecans and stir.
Preheat oven to 350°F. Grease and flour a 9X13 inch baking dish.
Spoon mixture into dish and bake for 40 minutes.
Let cool and cut into 2X2 inch squares.
Submitted by: Ron McCallister