Step 2

Snap off the tough ends of asparagus and wash asparagus thoroughly.

Step 3

Cook asparagus in boiling water for about two minutes, until it's bright green and just beginning to get tender. Drain.

Step 4

Place asparagus in a large bowl of ice water to stop the cooking. Drain.

Step 5

Lay asparagus in a 13" by 9" baking dish.

Step 6

In a small bowl, whisk together the olive oil, balsamic vinegar, sugar, garlic, and red pepper flakes.

Step 7

Pour over asparagus.

Step 8

Cover dish with plastic wrap and place in the refrigerator.

Step 9

Chill for about 8 hours.

Step 10

Using tongs, remove asparagus from marinade and serve.