Cold Sesame Noodles with Summer Vegetables

INGREDIENTS

• 1 tablespoon black or white sesame seeds
• Kosher salt, freshly ground pepper
• 1/3 cup vegetable oil
• 1 tablespoon toasted sesame oil
• 1 tablespoon Sriracha (hot chili sauce)
• 1 cup (loosely packed) cilantro leaves with tender stems
• 8 cups matchstick-size pieces mixed summer vegetables (such as carrots, radishes, cucumbers, and bell peppers; about 1 1/4 pounds)
• 3 scallions, thinly sliced
• 1/3 cup unseasoned rice vinegar
• 8 ounces buckwheat soba (Japanese-style noodles) or vermicelli noodles