INGREDIENTS
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3 stalks lemongrass, green part and root trimmed, remaining section cut into 3 pieces
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5 kaffir lime leaves, each torn into 4 pieces
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2-inch piece galangal or ginger, sliced crosswise into 6 to 7 pieces
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2 1/2 quarts (10 cups) cold water
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1 pound medium shrimp, peeled and deveined, left whole if small and roughly chopped if medium or large
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2 tablespoons tamarind paste (you know, the block of brown tamarind found in Asian markets)
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7 to 10 tamarind tendrils (optional)
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3 to 15 bird’s eye chile peppers, smashed, to taste
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2 tablespoons nam prik pao (roasted chile paste)
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1/4 cup sliced button mushrooms
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4 to 8 tablespoons fish sauce, or to taste
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6 to 12 tablespoons lime juice, or to taste
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1/2 tablespoon granulated sugar
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1/4 cup fresh cilantro leaves for garnish