… Heat oil in a large wide saucepan (you want a wide pot for maximum evaporation) over high. Cook mushrooms, undisturbed, until browned underneath, about 2 minutes. Toss and continue to cook, undisturbed, until browned on second side, about 2 minutes. Continue to cook, tossing occasionally, until browned on all sides and tender, about 2 minutes more; season with salt and pepper. Using a slotted spoon, transfer mushrooms to a medium bowl, leaving oil in pot…