Preheat oven to 425 degrees. Wash and trim Brussels sprouts. Remove outer leaves and cut off the bottom root, then slice the sprouts in half. If extra large, quarter them.
Toss Brussels sprouts in a bowl with vinegar, olive oil, salt and pepper.
1 pound Brussels sprouts, 2 tablespoons balsamic vinegar, 1 tablespoon olive oil, salt and pepper to taste
Place Brussels sprouts on a cookie sheet covered with a silpat, cut side up. Slice bacon into matchsticks and lay on cookie sheet between Brussels sprouts.
4 ounces bacon
Bake in 425 degree oven for 15 minutes, then turn Brussels sprouts over so that the cut sides face down. Bake another 10 minutes. Use tongs to separate the bacon into individual pieces so it crisps up and bake 5 more minutes.
The Brussels sprouts should be almost crispy on the outside and tender on the inside. Remove from oven and serve immediately