Preheat the oven to 475 degrees. Snap off the tough woods ends of the asparagus and rinse the spears. Drain on paper towels. Spread the asparagus out on a cookie sheet and brush or toss with the olive oil.
Roast the asparagus 10 to 12 minutes, or until tender when pierced with the tip of a knife. Alternatively, you can grill or steam the asparagus for 4 to 5 minutes, until tender. Arrange the asparagus on a serving plate.
Stir together the ingredients of the garlic dressing until the sugar has dissolved. Pour over the asparagus or serve as a dipping sauce. Serve warm or at room temperature.