Step 1

Cook noodles in a large pot of boiling salted water until tender. Drain and rinse under cold running water; set aside.

Step 2

Whisk peanut butter, vinegar, maple syrup, soy sauce, garlic, and ¼ cup warm water in a large bowl until smooth. Dressing should be the consistency of heavy cream; if too thick, add a little more water as needed. Season with salt and pepper. If noodles are sticking together, rinse briefly to separate; drain well. Transfer to bowl with dressing; toss to coat. Add cucumbers and scallions and season well with salt and pepper.

Step 3

Divide noodles among bowls; top with peanuts and drizzle with oil.