In a large pot, preheat oil over medium heat.
Sear the protein, working in batches if needed so as not to overcrowd the pot.
Return all the protein to the pot. Add water and tamarind soup base mix. If using the alternative tamarind paste/concentrate, add them and season the water with kosher salt.
Bring the water to a boil, then lower to maintain a simmer for up to 2 hours or until the protein is tender. While cooking, skim the surface for any impurities.
At about 30 minutes remaining, add your daikon radish and optional starchy vegetables.
At about 15 minutes remaining, add your okra, eggplant, tomatoes, onion, and other optional vegetables (that aren't leafy greens.)
At 3-5 minutes remaining, add your leafy greens.
If using tamarind paste/concentrate, taste for final adjustments using the tamarind (for sourness), kosher salt, and/or fish sauce (for saltiness.)