Cook spaghetti according to the package directions. Rinse the spaghetti with cold water and drain thoroughly. Pour into a large mixing bowl. Toss with the sesame oil.

In a blender or food processor, combine the peanuts, garlic, soy sauce, vinegar, sugar, cayenne pepper, and water. Blend until smooth and set aside.

Steam the carrots and the snow peas until tender-crisp, about 7 minutes, and set aside.

Add the peanut sauce, carrots, and snowpeas to the bowl of spaghetti and toss.

Just before serving, top with the green onions and cucumber.

Can be served while warm or excellent as a chilled salad!