Gaeng som pak (sour vegetable soup)

Instructions

1. Bring the water to a boil with the crushed garlic, sliced onion and sliced ginger.
2. Add the diced squash and let it cook for 8 minutes over medium heat.
3. Dissolve the tamarind paste in a little hot water, strain and pour into the soup.
4. Add the green beans, cabbage and tomatoes, and simmer for 5 minutes.
5. Season with fish sauce, lime juice, salt and pepper.
6. Serve very hot, with the sticky rice.