The time will vary depending on the cooking method and the thickness of the steak. A normal steak cut is about 3/4 of an inch thick and on average, the cooking temp on a grill … is 300-350of. With these, an average of about 8 minutes per side will leave a bit of red in the center.To be safe, check it a bit early by cutting a small slice in the middle of the steak.e only flip once at about 15 minutes. That gives you a medium well steak. It will vary depending on the thickness of the steak and the temperature of your grill or frying pan. Here's how restaurant chefs decide sear the steak lightly on both sides to brown.