4tablespoonsChinese sesame paste (or unsalted natural peanut butter or tahini)
2 to 4tablespoonswarm water
2tablespoons light soy sauce(or soy sauce)
2tablespoonsChinkiang vinegar
1tablespoonmaple syrup (or sugar)
2teaspoonsChili Oil,or to taste (see recipe linked in the headnote)
1teaspoontoasted sesame oil
1teaspoonminced ginger
2clovesgarlic,grated
1/8teaspoonfreshly ground Sichuan peppercorns
1pound (454 g)Handmade Noodles (see recipe linked in the headnote) or fresh wheat noodles or 9 ounces (255 g) dried wheat noodles
1cucumber,julienned, for topping (optional)
1carrot,julienned, for topping (optional)
4radishes,julienned, for topping (optional)
Toasted white sesame seeds,for garnishing
Instructions
Place the sesame paste in a medium bowl and slowly add the warm water, a little at a time, stirring with a silicone spatula until the water is fully incorporated and a smooth paste forms.
Add each liquid ingredient—the soy sauce, vinegar, maple syrup, chili oil, and sesame oil—one at a time, stirring to fully incorporate each ingredient before adding the next one.
Add the ginger, garlic, and Sichuan pepper and stir to mix well. (You can make the sauce ahead of time and store it in an airtight container in the refrigerator for 2 to 3 days.)
Boil the noodles according to the package instructions if not using handmade noodles. Strain in a colander and rinse under cold water to stop cooking. Strain well and transfer to individual serving bowls.
Serve the noodles with the sauce on the side and toppings of your preference. Let everyone assemble their own bowls, adding their preferred toppings and stirring in a few spoonfuls of the sauce. Garnish with sesame seeds.