Use a tofu press or cut tofu in half, lengthwise, so you have two thinner rectangles. Place a clean dish towel on a cutting board. Place tofu pieces on top, then cover with dish towel. Place a heavy cast iron pan on top (or a few heavy cookbooks.) Press tofu for a minimum of 15 min.
To a medium bowl, add garlic powder, onion powder, black salt, turmeric, tahini and milk. Whisk well until smooth. Set aside.
In a large skillet, heat 2 tsp oil over medium-high heat. While the pan is heating, crumble the tofu with your hands into bite-sized pieces. When the pan is hot, add tofu. Cook for 4-6 min, stirring occasionally, until golden-brown all over.
Reduce heat to medium-low. Add sauce to the pan. Cook for 2-4 min, stirring often, until tofu absorbs sauce, but it’s still creamy in texture. Season with more black salt and pepper to taste.
Serve right away with chives sprinkled over top, if using.