Oven-roasted asparagus, drizzled with rich, tangy balsamic glaze is a fancy holiday side dish for your Christmas table. Follow our easy steps to reduce balsamic vinegar at home or simplify with a store-bought option. Either way, this perfect pairing makes the best asparagus side dish, especially if you top it with Parmesan cheese. The whole family is guaranteed to eat their veggies when you make this keto-friendly recipe.