Hot Mustard Popcorn

2 quarts popcorn, popped in 1/4 cup oil
1 teaspoon dry mustard
1/2 teaspoon thyme
1/4 teaspoon ground black pepper
Dash of cayenne pepper
1/2 teaspoon low-sodium salt

Keep popcorn warm. Mix seasonings together. Add to popped popcorn and mix thoroughly.