Method:
Combine tamari, garlic, lemon juice, orange juice, tamarind paste, ketchup, ginger, curry powder, garam masala, and molasses in a small saucepan. Bring to a rolling simmer. Combine cornstarch and cold water. With sauce simmering slowly, whisk in diluted cornstarch. Simmer sauce for one minute; remove the pan from the heat. When tofu is ready, cut it into 1-inch squares, coat it in marinade and marinate for two hours in the refrigerator.
Preheat the oven to 400°F. Roll tofu in sunflower seeds until well coated. Place the tofu on a lightly oiled baking pan. Bake for about 25 minutes, or until deep golden brown, turning the pan once during the cooking process.