https://www2.niemanns.com/Recipes/Detail/495/Pork_Tenderloin_with_Cumberland_Sauce
Yield: 8 servings
Pork: Process lemon rind, garlic, parsley, olive oil, salt and pepper in a blender until finely chopped. Pour into a large heavy-duty ziptop plastic bag; add tenderloins, turning to coat. Seal and chill 30 minutes, turning once.
Cook tenderloins, 2 at a time, in a large skillet over medium-high heat 5 minutes on each side or until browned. Place tenderloins on a rack in a 15x10-inch jellyroll pan. Bake at 375 F. for 15 minutes. Let stand 10 minutes.
Slice and serve with Cumberland Sauce.
Cumberland Sauce: Bring 1-1/2 cups port wine, jelly, orange rind, orange juice, brown sugar, ginger, dry mustard, salt and red pepper to a boil in a large saucepan. Reduce heat; simmer for 20 minutes, stirring often. Blend remaining 1 cup port wine and cornstarch until smooth; add to hot mixture. Bring to a boil over medium heat; boil, stirring constantly, 1 minute. Pour over pork tenderloins.
Please note that some ingredients and brands may not be available in every store.
https://www2.niemanns.com/Recipes/Detail/495/Pork_Tenderloin_with_Cumberland_Sauce