Place flour, baking powder, salt and sugar into an electric mixer's mixing bowl and mix well; blend eggs and 1/2 cup oil into mixture. Pour orange juice and orange zest into mixture; mix well. When the mixture becomes very thick take the mixing bowl out of the mixer and continue stirring with a wooden spoon (at this point the mixture is so thick that it could damage an electric mixer).
Separate dough into thirds. Roll (or spread with your hands) each chunk of dough into a rectangular shape. Sprinkle the chocolate syrup onto the center of each rectangle. Fold the sides of each rectangle into the center to form a loaf shape. Work with the loaf until there is no longer a crease that could break open while baking. Each roll will be approximately 12 inches long. Brush the outside of each roll lightly with oil. Sprinkle cinnamon and sugar on top of the rolls.
Bake on a nonstick cookie pan for 20 minutes. This is a firm, cake-like cookie. If you would rather a crispier cookie toast the cookie another 5 minutes. Cool on a wire rack. When cooled cut the loaves to form semi-circle shaped cookies.