Preheat the oven to 400 degrees F. Lightly dust a work surface with the flour. Roll out the dough the size of a large sheet pan sheet pan (11 by 17) and about 1/4-inch thick. Carefully fold the dough into fourths and place in the pan. Form the crust to fit the pan. Crimping the edges. In a mixing bowl, toss the sweet potatoes with salt and vegetable oil. Roast the sweet potatoes for 1 hour, or until the potatoes are tender. Remove from the oven and cool. Remove the skin from each potato. Place the potatoes in a mixing bowl and mash the potatoes until smooth. Stir in the eggs, cream, cane syrup, cinnamon and nutmeg. Spread the sweet potato mixture over the pie crust. Bake the bars for 25 to 30 minutes, or until the bars are set. Remove from the oven and cool.
Yield: 4 dozen bars