In a medium to large bowl, mix together the salt, onion powder, garlic powder, flour, black pepper, cayenne and nutritional yeast.

In a separate small bowl, whisk together the mustard and water. Add 1/3 cup of the flour mixture to the mustard mixture and combine well.

Add baking powder to the flour mixture and combine well.

Coat pieces of seitan or mock chicken with the mustard batter, then coat each piece with the dry flour mixture.

Fry chunks of "chicken" in the oil on medium-high heat in a large skillet for 3-5 minutes, turning once until golden brown. Drain on a paper towel, serve with ketchup or barbeque sauce and enjoy!

Tip: If your chunks are turning brown or black rather than a crispy golden brown, your oil is probably too hot! Reduce the heat a small amount and try again.