Sweet & Sour Meatloaf

1 egg
5 T. ketchup, divided
2 T. Dijon mustard
½ C. dry bread crumbs
2 T. dry onion soup mix
¼ t. salt
¼ t. pepper
1 lb. ground beef
¼ C. sugar
2 T. brown sugar
2 T. cider vinegar

In a bowl, lightly beat egg. Add 2 T. ketchup, mustard, bread crumbs, soup mix, salt & pepper. Crumble beef over mixture & mix well. Shape into an oval loaf. Place in shallow 1 qt. microwave-safe dish & cover w/ waxed paper. Microwave on high 10-12 min. or until meat is no longer pink, rotating a half-turn once; drain. In a small bowl, combine the sugars, vinegar & remaining ketchup; drizzle over meat loaf. Cover & microwave an additional 2-4 min. Let stand 10 min. before slicing.