Buy a good tofu that doesn't have an after taste. Freeze tofu 48 hours. Defrost and squeeze out water. Cut into little squares (1 approximately).
In a separate bowl add soy or tamari sauce, peanut butter (creamy or chunky), crushed garlic, black pepper, cayenne pepper. Slowly stir in steaming water until the right consistency which might be like a thick salad dressing.
Mix in tofu cubes and cover all sides well. Spread cubes in one layer on a well oiled baking sheet. Barbecue sauce can be spread on top at this time. Bake at 350 degrees for 20 minutes. Remove and turn over. More barbecue sauce can be added. Return to oven and bake additional 20 minutes or until tofu seems cooked.
I don't think anything in the recipe needs to be exact, but I definitely would not skip the freezing part. Meat eaters are willing to try this because they think it might be chicken.