Created by Kittencal on December 5, 2011
Step 1: Preheat oven to 375 degrees F. Grease a 13 x 9-inch baking dish.
Step 2: Pat tenderloins dry with a paper towels then place into baking dish.
Step 3: Coat both loins evenly with the mayonnaise about 1/8 of an inch thick around entire loin (you may not use the whole jar of mayonnaise it will depend on the size of your tenderloins).
Step 4: Empty the envelopes of soup mix in a bowl and combine with garlic powder, then transfer to a flat surface; using a back of a spoon or rolling pin crush up the soup mix as best you can. Evenly sprinkle on top of mayonnaise around entire outside of both loins (At this point you can refrigerate the tenderloins until ready to cook them).
Step 5: Bake uncovered for about 35 to 45 minutes or until internal temperature is about 160°F (since the meat continues to cook for about 10 minutes after I remove from oven before 160).