Radish Asparagus Salad

In a large saucepan, bring 6 cups water to a boil. Add asparagus; cover and boil for 3 minutes. Drain and immediately place asparagus in ice water. Drain and pat dry., Transfer to a large bowl; add radishes and sesame seeds. Place dressing ingredients in a jar with a tight-fitting lid; shake well. Pour over salad; toss to coat.