1. Preheat oven to 400°.
2. Trim fat from tenderloins; make 1/2-inch-deep slits on outside of tenderloins, and stuff with garlic slices. Combine water, oil, salt, and pepper in a small bowl. Rub surface of tenderloins evenly with oil mixture.
3. Place tenderloins lengthwise on a double thickness of foil, 15 inches long. Top with 4 rosemary sprigs, and wrap securely. Place tenderloins on a baking sheet or roasting pan. Insert meat thermometer through foil into center of 1 tenderloin.
4. Bake at 400° for 20 minutes or until a meat thermometer registers 155°. Remove from oven; let stand until thermometer registers 160°. Discard cooked rosemary sprigs. Garnish with additional rosemary sprigs, if desired.
carbo rating: 1