Cut tofu into strips and place into a bowl.
In a food processor place the cumin, fennel, coriander, turmeric, sea salt, soy sauce, garlic, lemongrass, cayenne pepper, sugar and oil and process until a smooth paste is formed. Add extra 1/4 cup veggie broth or water if using a blender. May need to add extra soy sauce.
Remove paste and rub onto tofu, allow to marinate for 30 minutes or even overnight in the refrigerator.
Bake in oven at 450 degrees on a greased baking sheet for 12 minutes then turn and bake for 12 more minutes. Serve with peanut sauce.
Place all the ingredients in a small saucepan and bring to boil on medium heat, stir constantly to prevent burning. Simmer until it thickens.