How to Make It
Preheat oven to 425ºF. Line a large baking pan with heavy-duty foil and place a wire rack inside. Sprinkle tenderloin with salt and pepper and roast for 15 minutes.
Combine marmalade and ground ginger. Brush all over tenderloin, and continue to roast until an instant-read thermometer inserted in thickest part reads 155ºF, about 10 minutes longer.
Turn oven to broil and place tenderloin under broiler to caramelize marmalade, 1 to 1 1/2 minutes (watch carefully and remove before jam starts to burn). Let stand for 5 minutes before slicing and serving.