Prepare the rub by combining salt, ground black pepper, garlic powder, and cayenne pepper. Mix well.
Rub the mixture all over the rib eye steak. Let it stay for 10 minutes.
Meanwhile place oil on a large bowl then sprinkle a little salt. Add-in the potatoes and coat with oil.
Heat-up the grill.
Grill the rib eye steak for 5 to 6 minutes per side.
Grill the potatoes for 10 to 12 minutes.
Let the steak rest for 10 minutes. Arrange the rib eye steak in a serving plate along with the potatoes.
Serve with your favorite steak sauce. Share and enjoy!