Step 1

In a small skillet, heat the oil just until it begins to shimmer. Transfer to a medium bowl and let cool. Cook the noodles according to the package directions. Drain and toss with the oil in the medium bowl or on a small rimmed baking sheet. Cover and refrigerate until cold.

Step 2

In a small bowl, whisk the sesame paste and furu until smooth. Add the sesame oil, light soy sauce, sugar, black vinegar, dark soy sauce, sichuan peppercorn oil, and salt and whisk until smooth. Whisk in the mayonnaise and then whisk in enough of the water until a thin creamy, silky sauce forms.

Step 3

Divide the noodles among bowls; drizzle the sesame sauce on top. Garnish with the scallions, chile oil, and sesame seeds.