Preheat the Oven: Preheat the oven to 425°F.
Prepare the Asparagus: Wash the asparagus and trim off the tough ends.
Season the Asparagus: Place the asparagus on a sheet pan and toss it with the salt and 2 tablespoons of olive oil, until evenly coated.
Roast the Asparagus: Roast for 8 to 12 minutes, until the asparagus is just tender.
Make the Dressing: In a bowl, stir together the remaining 2 tablespoons of olive oil, white wine vinegar, red pepper flakes, and grated garlic.
Cool the Asparagus: Remove the asparagus from the oven and let it cool slightly.
Cut and Toss: Chop the asparagus into 2-inch pieces and toss it with the dressing until well coated.
Serve: Serve immediately or allow it to sit briefly for the flavors to develop.