For a variation on this savoury popcorn: Toss popcorn with melted butter, 1 tsp. of ground sumac and 3 tbsp of Parmesan cheese. If you are feeling like a sweet snack: Toss popcorn with melted butter and sprinkle with some cinnamon sugar (3 tbsp. granulated sugar and ¼ tsp. ground cinnamon).
Pop popcorn kernels in an air popcorn machine according to manufactures directions.
In a small saucepan melt butter over medium-low heat (or alternatively melt butter in microwave). Stir in garlic powder and oregano. Remove from heat. In a large bowl toss the popcorn with the butter mixture to evenly coat. Season with the Parmesan cheese and salt and pepper to taste and toss to evenly coat. Alternatively toss the popcorn with the flavourings in smaller batches if easier to work with. Makes about 8 cups of savoury popcorn.