- ice cubes
 - 2 pounds fresh asparagus, trimmed
 - 1/3 cup soy sauce
 - 1/3 cup rice vinegar
 - 2 tablespoons vegetable oil
 - 2 tablespoons agave nectar
 - 2 cloves garlic, minced
 - 1 tablespoon grated fresh ginger
 - 1 teaspoon sesame oil
 - 1 pinch cayenne pepper, or to taste
 - 1 tablespoon toasted sesame seeds
 
- Fill a large bowl with with cold water; add ice.
 - Bring a pot of water to a boil; cook asparagus in boiling water until bright green, 1 to 2 minutes. Drain asparagus and plunge into ice water to stop cooking. Drain and transfer asparagus to a baking dish.
 - Whisk soy sauce, rice vinegar, vegetable oil, agave nectar, garlic, ginger, sesame oil, and cayenne pepper in a large bowl; pour marinade over asparagus, adding water if necessary to submerge asparagus. Cover baking dish and refrigerate for 2 hours or overnight.
 - Drain marinade and sprinkle sesame seeds over asparagus before serving.