Step 1

Bring a pot of salted water to a boil.

Step 2

Add the soba; stir to prevent sticking, and cook according to package instructions until just tender.

Step 3

Rinse under cold water until the noodles are completely cold; set aside.

Step 4

In a medium bowl, combine the peanut butter, soy sauce, maple syrup, lime juice, sesame oil, chili oil or hot sauce, and garlic.

Step 5

Add 1/4 to 1/2 cup water, 1 tablespoon at a time, and whisk until the sauce is a pourable consistency.

Step 6

Taste and add more chili oil or hot sauce as desired; set aside.

Step 7

Cut the zucchini or cucumber and radishes into 1/8-inch thick slices, then cut into thin matchsticks.

Step 8

Slice the peppers into 1/8-inch pieces.

Step 9

Place all vegetables in a large bowl.

Step 10

Loosen the soba noodles by running them under some water; allow to drain again.

Step 11

Add noodles to the vegetables; add the remaining 1 tablespoon sesame oil and toss to combine.

Step 12

When you are ready to serve, drizzle with spicy peanut sauce and top with peanuts, scallions and cilantro.

Step 13

Serve immediately, with lime wedges alongside.