Vegetarian Vegan Tom Yum Soup

Total time45 min

Prep time20 min

Cook time25 min

This fragrant, spicy-sour broth gets its signature punch from bruised lemongrass, sliced galangal, and torn kaffir lime leaves simmered until deeply aromatic, then rounded out with roasted chili paste, fresh lime juice, and a touch of sugar for balance. Meaty shiitake and oyster mushrooms soak up all that bold flavor, while cubes of firm tofu and halved cherry tomatoes add heartiness and a juicy pop of sweetness in every spoonful. Bird's eye chiles bring real heat, so adjust to taste if you want it milder or fierier. A scatter of fresh cilantro and green onion on top, plus extra lime wedges at the table, keeps things bright and vibrant right up to the last sip. It's a comforting, restaurant-style bowl that comes together in one pot and works beautifully for a vegetarian table.

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Ingredients

4 servings

For the broth

6 cups vegetable broth
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3 stalks lemongrass, tough outer layers removed, cut into 2-inch pieces and lightly bruised
1 oz fresh galangal (or fresh ginger), sliced into ¼-inch coins
Chef's tip
Ginger is the closest stand-in - swap 1:1; the flavor is warmer and less piney.
8 fresh or frozen kaffir lime leaves, torn in half
3 thai bird's eye chiles, halved lengthwise (or more to taste)
3 tbsp vegan fish sauce
3 tbsp fresh lime juice (from about 2 limes)
1 tbsp soy sauce
1 tsp sugar
2 tbsp thai roasted chili paste (nam prik pao)

For the soup

8 oz shiitake mushrooms, stems removed, caps sliced ¼-inch thick
4 oz oyster mushrooms, torn into bite-sized pieces
14 oz firm tofu, drained and cut into ¾-inch cubes
1 cup cherry tomatoes, halved

For serving

¼ cup fresh cilantro leaves
2 green onions (green tops only), thinly sliced (optional)
1 lime, cut into wedges (optional)

Instructions

1
Pour the vegetable broth into a large saucepan and bring to a boil over high heat. Add the lemongrass, galangal, kaffir lime leaves, and bird's eye chiles.
2
Reduce the heat to medium and simmer for 10 minutes, until the broth is fragrant and deeply infused with the aromatics.

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