3.

Combine garlic, ginger, sesame paste, vinegar, soy sauce, and sugar in a large bowl and stir with a spoon to combine. Carefully pour the chili-infused oil into the bowl through a fine mesh strainer (add only half of the chili sauce if you prefer a less spicy dish). Discard dried chilies and Sichuan peppercorns. Stir sauce to emulsify, adding a few drops of water if it is very thick (sesame paste can vary in thickness). Add cucumbers, scallions, cilantro, sesame seeds, and drained noodles. Toss to coat, adjusting seasoning with more tahini, sugar, soy sauce, or vinegar to taste. Transfer to a serving platter, top with peanuts, and serve.