Prepare the scallops by removing any feet and patting dry.
Heat the clarified butter/oil in a cast iron or black steel pan over medium-high heat until it reaches 450°F (232°C).
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Add scallops to the pan—as many as you can handle without crowding them. Work in batches if necessary.
Allow the scallops to cook for 1-2 minutes before checking underneath them to see how brown they have become. If they are not yet well browned, continue cooking.
When scallops are golden brown on one side, flip them.
Allow the scallops to cook on the second side while monitoring their temperature with a fast and accurate thermometer like Thermapen ONE. Once the lowest measured temperature in each scallop reaches 115°F (46°C), remove it from the pan and set aside on a platter. Repeat until all the scallops are fully cooked, rinsing the pan between batches.