[header] How to make flank steak pinwheels [title] Preheat the grill pan. [step] To ensure that the grill pan is hot enough to cook the steak, it's important to preheat it. Place the pan on the stovetop, and turn the heat to high. 
Allow the pan to heat for approximately 5 minutes. [substeps] You'll know that the pan is hot enough when you sprinkle a few drops of water over the pan and it evaporates quickly.