There are a few rules to follow when grilling indoors. The most important is preheating the grill to a uniformly hot surface. Stove-top grills need a few minutes on the burner, but beware a too-high flame: It won't speed up or improve your cooking, only scorch the food and damage the pan. For an electric grill, simply plug it in and wait five minutes for the unit to heat up. As for accessories, all you really need is a pair of tongs for turning food, a basting brush for oil or marinade, and a spatula for flipping. If your grill has a nonstick finish, choose wooden or plastic utensils to avoid scratching the surface.