2 tablespoons chopped roasted unsalted peanuts, plus more for garnish
To make the dressing: In a blender, puree the plums, vinegar, scallions, ginger, and salt until smooth. With the machine running, add the oil, then the water, in a slow, steady stream and puree until emulsified.
To make the slaw: Line a large plate with paper towels. Fill a small saucepan with oil to a depth of 1 inch, and heat over medium-high heat until hot (350°F). Break the noodle bundles into 5-inch-long pieces. Add a handful of noodles to the oil. They'll puff and turn white immediately. Cook just until they're all puffed, about 5 seconds. Use a slotted spoon to transfer the noodles to the paper towels. Repeat with the remaining noodles.
In a large bowl, toss the cucumber, carrot, jicama, sprouts, scallions, cilantro, peanuts, and 1/2 cup of the dressing until well mixed. You can add more dressing to taste. Right before serving, top with the noodles and more peanuts. Eat right away! Get some noodles and slaw in each bite, but eat fast because the noodles get soggy.
Carla's Tips - Yes, "dried plums" is just a fancy way of saying prunes!