Rinse the noodles very well in a colander under cold running water. Prepare them according to the package directions.
Combine the peanut butter, soy sauce, vinegar, sesame oil, ginger, garlic, 1/8 teaspoon salt and 2 tablespoons warm water in a blender and blend until smooth. Pour over the noodles and toss with the cucumber and scallions.
Recipe courtesy of Bobby Deen