Melt butter in a skillet over medium-high heat; reduce heat to medium.
Add tenderloins; cook 7 to 9 minutes on each side or until done.
Sprinkle with 1/4 teaspoon salt and 1/4 teaspoon pepper.
Place in serving dish, reserving drippings in skillet.
Add shallot to skillet; saut until crisp-tender.
Add wine; bring to a boil, and boil, stirring constantly, until syrup consistency. Stir in broth; and cook, stirring occasionally, until slightly thickened. Stir in preserves and remaining salt and pepper; simmer 2 to 3 minutes.
Serve with sliced tenderloins; sprinkle with parsley.