For an even deeper flavor, try using roasted garlic instead of fresh. Simply roast a whole head of garlic until soft and then squeeze out the cloves before mincing. Don't overcrowd the baking sheet! This will steam the broccoli instead of roasting it. Use two baking sheets if necessary. A sprinkle of red pepper flakes adds a delightful touch of heat. Experiment with different types of vinegar, such as sherry vinegar or white balsamic vinegar, for a unique twist.