Place 1 cup vital wheat gluten, 1/4 cup nutritional yeast, 2 teaspoons garlic powder, 2 teaspoons poultry seasoning without salt, 1 teaspoon onion powder, 3/4 teaspoon kosher salt, and 1/2 teaspoon black pepper in a medium bowl and whisk to combine. Using a wooden spoon, make a well in the mixture.