Combine eggs, soup mix, bread crumbs, and parsley in a large bowl. Crumble beef over mixture and mix well; shape into 1-inch balls.
Place 12 to 14 balls on a microwave-safe plate; cover with waxed paper. Heat in microwave on high until no longer pink, 3 to 4 minutes; remove to paper towels to drain. Repeat with remaining meatballs.
Combine cranberry sauce, ketchup, beef broth, brown sugar, onion, and vinegar in a microwave-safe dish. Cover with waxed paper and heat in microwave on high until heated through, 3 to 4 minutes. Serve sauce with meatballs.
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