Add 2 tablespoons of coconut oil to a large pan and heat it up.
Add the onions and stir for 2 to 3 minutes until they become translucent.
Toss in the garlic and saute for 30 seconds.
Add the ginger, stir well and let it cook for 30 seconds to 1 minute while stirring continuously.
Add salt and pepper.
Add the vegetables (sweet potatoes, carrots, cauliflower and broccoli).
Keep the pan on medium heat.
Add 2 teaspoons of red curry paste and stir it with the vegetables for 2 minutes.
Pour in the coconut milk and stir well.
Pour in 1 cup of water and bring the mixture to a simmer.
Let it cook for 10 minutes on medium heat until the veggies are tender.
Stir in 1 tablespoon of tamarind sauce and 1 tablespoon of rice vinegar.
Verify that the veggies are well cooked.
Finely chop the coriander and add to the sauce.
Adjust the salt and pepper according to your taste.
Serve hot with brown rice and enjoy!