Definition: In this task, you have to generate the title of the recipe given its required ingredients and directions.
Input: ingredients:  '4 cups vegetable stock', '3 stalks lemongrass', '12 kaffir lime leaves', '2 12 tablespoons lime juice', '3 green onions, cut crosswise into 1 inch lengths', '1 jalapeno', '8 ounces firm tofu, cut into 1 inch cubes', '1 cup sliced mushrooms (canned is fine) or 1 cup straw mushroom (canned is fine)', '2 tablespoons chili paste (roasted)', '2 teaspoons sugar', '12 teaspoon soy sauce', '12 teaspoon salt',<sep> directions: 'In a large saucepan bring the stock to a boil over medium heat.', 'Meanwhile, trim the lemongrass stalks.', 'Trim away the tops and any hard parts.', 'Bruise the stalks along their lengths with a heavy knife or mallet.', 'Cut into 2 inch pieces.', 'Add the lemongrass to the boiling stock along with half the lime leaves.', 'Cook until the stock is fragrant, about five minutes.', 'While the soup simmers, combine the lime juice, the remaining lime leaves, and the green onions in a serving bowl large enough to accommodate the soup.', 'Cut the jalapeno into rounds.', 'Add the desired amount to the serving bowl (depending on your tolerance for heat).', 'Scoop out the lemongrass from the stock and discard.', 'Raise the heat to high and add the tofu, mushrooms, chili paste, sugar, soy sauce, and salt.', 'Stir well.', 'When the soup boils again, remove it from the heat and quickly pour it into the serving bowl.', 'Stir to combine the lime juice and herbs with the soup and serve at once.'

Tome Yum Soup With Mushrooms and Tofu