This Vegan Sweet, Sour & Spicy Ramen is the ultimate comfort soup—ready in just 10 minutes with simple, wholesome ingredients.
Packed with plant-based protein from tofu, fiber-rich veggies, and naturally low in saturated fat, it’s a nourishing option that doesn’t compromise on bold flavors.
The tang of sauerkraut, the kick of chili garlic sauce, and the creaminess of red curry paste make it a quick, satisfying, and meal-prep-friendly choice for any day of the week.

10-Minute Vegan Ramen Soup
Equipment
- 1 large soup pot (5-quart)
- 1 Sharp Knife
- 1 Cutting board
- Measuring Cups & Spoons
- Ladle
Ingredients
- ½ package smoked tofu chopped into small cubes
- 1 cup mushrooms sliced, optional but recommended
- ¼ cup roasted red peppers jarred, optional
- 2 ½ tablespoons red curry paste
- 2 tablespoons Better Than Bouillon Vegetarian No Chicken base
- 2 teaspoons chili garlic sauce or more, to taste
- ¾ cup sauerkraut drained well
- 5 cups water
- 2 packages ramen noodles discard seasoning packets
Optional Garnishes:
- 2 tablespoons green onion sliced, green tops only
- 2 tablespoons fresh cilantro or basil chopped
Instructions
- Prepare Your Ingredients: Start by gathering all your ingredients. Chop the smoked tofu into small cubes—bite-sized pieces work best for even cooking. Slice the mushrooms if using, and roughly chop the roasted red peppers. Measure out your red curry paste, bouillon, chili garlic sauce, sauerkraut, and water. Having everything ready ensures a smooth cooking process and keeps your soup flavorful.
- Heat the Broth Base: Place a large soup pot over medium-high heat. Pour in 5 cups of water, then add the red curry paste and vegetarian bouillon. Stir constantly until the paste dissolves and the broth starts to smell aromatic. This step is essential for building the deep, umami-rich flavor that makes this soup irresistible.
- Add the Flavor Boosters: Once the base is gently simmering, stir in the chili garlic sauce. Adjust the quantity depending on your preferred spice level—start small if you prefer mild, or add extra for a fiery kick. Then, fold in the sauerkraut carefully, ensuring it is well-drained so your soup doesn’t become watery. The sauerkraut adds a subtle tanginess that balances the sweetness of the curry.
- Incorporate the Vegetables: Add the mushrooms and roasted red peppers to the pot. Give them a gentle stir so they are coated in the flavorful broth. These vegetables not only enhance the taste but also add fiber, vitamins, and texture to your soup. Allow them to cook for 2–3 minutes until slightly tender but not mushy.
- Cook the Tofu: Gently fold the cubed smoked tofu into the simmering broth. Tofu absorbs the savory and spicy flavors beautifully, making every bite rich in plant-based protein. Let the tofu warm for 2–3 minutes; it doesn’t need long since it’s already cooked, but allowing it to soak up the broth enhances flavor.
- Add the Ramen Noodles: Carefully add the ramen noodles to the simmering pot. Stir gently to separate them and prevent clumping. Reduce the heat slightly to maintain a low boil. Cook the noodles for 3–4 minutes, or until tender but still slightly firm to the bite (al dente). Overcooking can make them mushy, so keep a close eye.
- Taste and Adjust Seasonings: Before serving, taste your soup and adjust as needed. Add more chili garlic sauce for heat, a teaspoon of sugar for sweetness, or a little sauerkraut juice for extra tang. This step ensures that every bowl matches your personal flavor preference perfectly.
- Plate and Garnish: Using a ladle, portion the soup into individual bowls, making sure each serving has plenty of noodles, tofu, and vegetables. Sprinkle sliced green onions and fresh herbs like cilantro or basil on top. The garnish adds freshness, color, and a bright herbal note to balance the rich broth.
- Serve and Enjoy: Serve immediately while hot. Encourage diners to mix everything together in their bowl before enjoying the harmonious blend of sweet, sour, and spicy flavors. This ramen is perfect as a quick weeknight dinner, a cozy lunch, or a meal-prep-friendly soup that stays satisfying even when reheated.
Notes
- Sauerkraut Adjustment: Add 1 tablespoon of sauerkraut juice at a time for a tangier broth. Taste as you go to avoid overpowering the soup.
- Sweetness Balance: If you prefer a slightly sweeter broth, stir in 1–2 teaspoons of sugar to balance the sour and spicy flavors.
- Spice Level: Omit the chili garlic sauce for a mild soup, or increase it to make it extra spicy.
- Vegetable Flexibility: Use whatever vegetables you have on hand—carrots, zucchini, or bok choy all work beautifully.
- Herb Garnish: Fresh herbs like cilantro or basil are optional, but they add a bright, aromatic finish.
- Noodle Tips: Discard seasoning packets from store-bought ramen to keep the recipe clean and healthy; use preservative-free noodles whenever possible.
- Tofu Tip: Smoked tofu absorbs flavors quickly, but firm tofu can also be used if smoked isn’t available.
Chef’s Secrets For Perfect Broth
The secret to this ramen lies in layering flavors.
Start with a rich base of red curry paste and vegetarian bouillon—stirring constantly ensures no paste sticks to the bottom of the pot.
Incorporating sauerkraut adds subtle acidity that balances sweetness, while the tofu and vegetables absorb the broth for maximum umami.
Always taste the soup before adding noodles; this is your chance to tweak spice, tang, or sweetness for a perfectly balanced bowl.
Using fresh herbs as garnish at the end elevates both aroma and presentation.
Serving Suggestions For Every Occasion
This ramen is versatile enough to serve as a quick lunch, dinner, or even meal-prep option.
Pair it with a simple side salad or steamed dumplings for a full Asian-inspired meal.
A drizzle of toasted sesame oil or a sprinkle of sesame seeds on top adds an extra layer of richness.
For a heartier option, toss in some edamame, spinach, or shredded carrots.
Serve immediately to enjoy the noodles at their ideal texture, or keep them separate if preparing for meal prep to avoid sogginess.
Storage Tips Keep Soup Fresh
Store any leftover soup in an airtight container in the refrigerator for up to 3–4 days.
Keep the noodles separate if possible; they tend to absorb the broth and become soft.
To reheat, gently simmer the soup on the stovetop or microwave it until hot, then add freshly cooked noodles for the best texture.
For freezing, avoid adding noodles—freeze the broth, tofu, and vegetables for up to 2 months, and cook fresh noodles when ready to serve.
Frequently Asked Questions
1. Can I use firm tofu instead of smoked tofu?
Yes! Firm tofu works well, though it won’t have the smoky flavor. To mimic the taste, lightly pan-fry it with a bit of soy sauce or smoked paprika before adding it to the soup.
2. Are there gluten-free ramen options?
Absolutely. Many stores carry gluten-free rice or shirataki noodles that can replace traditional ramen. Just follow the cooking instructions on the package and add them in the final step.
3. How can I make this soup milder?
Simply reduce or omit the chili garlic sauce. You can also balance flavors with a small pinch of sugar or additional sauerkraut juice to maintain depth without the heat.
4. Can I prepare this soup ahead of time?
Yes, but store noodles separately to prevent sogginess. The broth, tofu, and vegetables can be made 1–2 days in advance. Reheat gently and cook fresh noodles when ready to serve.
5. What vegetables work best in this ramen?
Mushrooms and roasted red peppers are ideal, but feel free to experiment with carrots, zucchini, bok choy, spinach, or snap peas. Add hearty vegetables early and delicate greens at the end to maintain texture.