Directions
Combine flour, baking powder, salt and baking soda in a medium bowl and mix well. Stir in vegetable oil. Add buttermilk and stir just until blended.
Knead the dough on a ligthly floured surface until smooth. Roll dough into a 15x8 inch rectangle.
Preheat the oven to 400 degrees F. Grease a 9-inch round baking pan lightly.
Spread butter over the dough. Combine granulated sugar and cinnamon in a small bowl and mix well. Sprinkle over butter. Roll up rectangle, jelly roll fashion, starting from one long side. Pinch seam to seal.
Cut the roll into 1-1/2 inch slices. Arrange the slices, cut side up in a prepared baking pan. Bake until lightly browned, about 15 to 20 minutes. Remove from oven. Pour milk over the top, if desired. Serve hot.