Cold Buckwheat Noodles with Spicy Sesame Soy Sauce

By AislePrompt Editorial · Published 2026-04-26 · Updated 2026-04-26

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

Refreshing chilled buckwheat noodles tossed in a spicy sesame and soy dressing, finished with crisp cucumber and scallions for a light Korean-inspired meal. This Korean recipe, ready in about 20 minutes, pairs buckwheat noodles (soba), soy sauce, toasted sesame oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 3, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 10 min Serves 3 Korean cuisine 350 cal/serving

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Ingredients

8 ounces buckwheat noodles (soba)
3 tablespoons soy sauce
2 tablespoons toasted sesame oil
1 tablespoon rice vinegar
1 teaspoon gochugaru (Korean red pepper flakes)
1 teaspoon sugar
1/2 medium, julienned cucumber
2, thinly sliced scallions
1 tablespoon toasted sesame seeds

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Instructions

Step 1: Bring a large pot of water to a boil. Add 8 ounces buckwheat noodles and cook according to package instructions (usually 4-5 minutes) until tender but firm. Drain and rinse under cold water until completely cool; drain well.
Step 2: In a small bowl, whisk together 3 tablespoons soy sauce, 2 tablespoons toasted sesame oil, 1 tablespoon rice vinegar, 1 teaspoon gochugaru, and 1 teaspoon sugar until sugar dissolves and dressing is smooth.
Step 3: In a large mixing bowl, toss the cooled noodles with the dressing, 1/2 julienned cucumber, and 2 thinly sliced scallions until evenly coated.
Step 4: Transfer noodles to serving plates and sprinkle 1 tablespoon toasted sesame seeds over the top. Serve immediately chilled.