Article: Take your steak out of the fridge and place it on the counter. Let the steak rest for about 1 hour until it reaches room temperature. Let your oven fully preheat as you finish preparing the steaks. Measure out about 1 teaspoon (4 ml) of groundnut or vegetable oil; it doesn't have to be exact. Add the oil to a large, heavy-based frying pan and place the pan on a burner. Turn the heat to high and let the oil heat up until it shimmers. You can use any cooking oil that is flavorless if you don't have vegetable or groundnut oil on hand. Use paper towels to soak up any moisture on the outside of your rump steak. Sprinkle both sides generously with the sea salt, adjusting the amount to your personal tastes as needed. Carefully lower the rump steak into the hot oil in the pan. Be careful not to splash the hot oil. Sear the first side for 3 minutes. You don't need to stir or move the rump steak as it sears. Try not to splash the oil as you flip the steak over. You don't need to stir or move the rump steak as it sears for another 3 minutes. Remove the steak from the heat. Use tongs to move it from the frying pan to a roasting pan. Put the roasting pan in the preheated oven. Remove the steak after the time elapses and place the roasting pan on a heat-safe surface. Be sure to season both sides of the steak. Cover the roasting pan loosely with aluminum foil. Let the rump steak rest at room temperature for 10 minutes before slicing and serving it. This rump steak serves 2 to 3 people, so you can slice it however you like, although thin slices usually work well. Serve the steak while it's still warm with your choice of side dishes. Refrigerate leftover rump steak in an air-tight container and be sure to eat it within 3 days.

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Bring the large rump steak to room temperature. Preheat your oven to 350F (180C). Add the oil to a medium-sized pan and heat it over high heat. Pat the steak dry and season it with the sea salt. Place the steak in the pan and cook the first side for 3 minutes. Flip the steak with tongs and sear the other side for 3 minutes. Transfer the steak to a roasting pan and bake for 10 to 15 minutes. Season with pepper and cover the steak with foil for 10 minutes. Slice the rump steak and serve immediately.