Vegetable rasam (indian soup)

Ingredients

• 1 (about 100g) carrot - remove skin and cubed
• 2 (about 150g) potatoes - remove skin and cubed
• 2 green chillies - remove seeds and sliced
• 5 shallots - sliced thinly
• 5 garlic - sliced thinly
• 1 (about 80g) tomato - sliced thinly
• 1 1/2 tbsp rasam powder
• 1 tsp black mustard seeds
• 20g (one small ball) tamarind/asam jawa - add some water and extract juice
• 3 sprigs curry leaves - shredded
• 2 stalks sping onions - sliced into long pieces
• 3 tbsp oil
• salt to taste