Salt the meat well, and let it sit for 15 minutes. (For the very best results, put the meat in the freezer during this time.)
Tie the roast every inch or two. Pepper well.
Heat a cast-iron pan over high heat until very hot, at least 425°F (208°C). Pour the oil into the pan, pat the roast dry, and brown the meat well on all sides.
Remove the meat from the pan.
Insert a probe for your ChefAlarm or RFX MEAT into the deepest part of the roast. Set the high-temp alarm for 125°F (52°C). (Add 5°F [3°C] for medium roast beef.)
Cook the roast until the high-temp alarm sounds. Verify the temperature with your Thermapen® ONE by inserting the probe deep into the roast and pulling it out slowly, looking for the lowest temperature. If nothing reads lower than 125°F (52°C), remove the roast from the oven.
Allow the roast to rest for at least 15 minutes, covered lightly with foil, before serving. During this time, the temperature will rise a few degrees and the meat will relax.
Slice the roast thinly, and serve with all your favorite roast-beef accompaniments.
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