1 large red onion, sliced and separated into rings (about 2 cups)
2 tablespoons red wine vinegar
2 tablespoons honey
1/2 teaspoon salt, divided
1 teaspoon dried thyme
1/4 teaspoon freshly ground black pepper
4 (4-ounce) beef tenderloin steaks, trimmed (1 inch thick)
1. Preheat broiler.
2. Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Add onion to pan. Cover and cook 3 minutes. Add vinegar, honey, and 1/4 teaspoon salt to pan. Reduce heat, and simmer, uncovered, 8 minutes or until slightly thick, stirring occasionally.
3. Sprinkle remaining 1/4 teaspoon salt, thyme, and pepper evenly over beef. Place beef on a broiler pan coated with cooking spray; broil 4 minutes on each side or until desired degree of doneness. Serve with onion mixture.