Thick noodles are topped with a sweet-savory soybean paste sauce and fresh shredded vegetables. This vegetarian-adaptable family dish is a simpler cousin of zhajiang noodles with a milder, sweeter flavor profile.
Cook thick wheat noodles in a large pot of boiling water until al dente (about 8–10 minutes), then drain and rinse under cold water to prevent sticking.
Meanwhile, finely dice the firm tofu; set aside. Mince the garlic.
Heat 1 tbsp sesame oil in a skillet over medium heat. Add minced garlic and diced tofu. Sauté for 2–3 minutes, gently stirring to prevent burning.
Stir in soybean paste, soy sauce, and sugar, then pour in 1/3 cup water. Reduce heat to medium-low and simmer the sauce for 5–6 minutes, stirring occasionally until thickened and glossy.
Julienne cucumber and carrot. Slice scallions thinly.
To serve, divide noodles into bowls. Spoon the hot soybean paste sauce over noodles. Top with generous portions of shredded cucumber, carrot, and sliced scallions. Drizzle with extra sesame oil if desired. Serve immediately.