Make sure to use super firm tofu, the kind that's vacuum sealed and doesn't need pressing. Otherwise, if you are using extra firm, you should press it for at least 30 minutes.
You can either cut and score your block of tofu into 3 - 4 filets like I do in my Tofu Grilled Chicken recipe, or you can thinly slice it. Both options work great!
Once the filets / slices are prepped, coat them in the marinade. Marinade for at least 30 minutes to overnight.
Get a pan up to medium heat, add a little oil and then grill the filets / tofu slices for about 4 - 5 minutes per side. Feel free to brush the leftover marinade before and after you flip them. Once they are cooked to your liking remove from the heat.
If you want to shallow fry the filets, let them cool after grilling. Then dredge them in the flour and salt and pepper. Fry them in a some oil (I used 1/4 cup for a 12" skillet) over medium heat until golden brown. Remove the the pan and set aside.