Thaw tenderloin and pat dry. Bring to room temperature.

Pre-heat oven to 375 degrees.

Soften the bacon grease and rub on the meat

Mix the herbs and seasonings and rub into the grease and meat to coat. Season with pepper.

Roast uncovered in a roast pan or casserole dish.

Check the internal temperature with a meat thermometer. It is done at 140 degrees. Don't rely on the cook time!

Slice thinly and serve.