Hot and sweet vegetable and tofu soup

I discovered that my mom love Thai food. I tried another Thia soup. She loved it:) The recipe is again cookbook called "The food and cooking of Thailand".
Ingredients:
- 3 cups vegetable stock

(or shiitake stock that you find in Asian markets)
- 1/2 tablespoon Thai red curry paste
- 1 tablespoon light brown sugar
- 2 tablespoons soy sauce
- juice of 1/2 lemon
- 1/3 cup carrot, cut into thin batons
1 cup sliced shiitaki mashroom
- 30g baby spinach leaves or bok choy
- 150g block firm tofu, diced


Directions:
1. Heat the stock in a large pan, then add the red curry paste. Stir constantly over a medium heat until the paste has dissolved. Add the sugar and soy sauce and bring to a boil.

2. Add the lime juice and carrot to the pan. Reduce the heat and simmer for 5-10 minutes. Place the spinach and tofu in two individual serving bowl and pour the hot stock on top to serve.