For the best taste, use real Parmesan cheese, stamped Parmigiano-Reggiano on the rind and available in chunks at most supermarkets.
- ¼ cup grated Parmigiano-Reggiano
- 1 teaspoon ground thyme
- ½ teaspoon garlic powder
- ½ teaspoon salt
- 8 cups plain air-popped popcorn, kept hot
- Cooking spray
In a small bowl, mix together cheese, thyme, garlic powder, and salt. Place hot popcorn in serving bowl and coat with cooking spray; sprinkle with cheese mixture, tossing all the while, until well coated.