Cinnamon Vanilla Caramel Popcorn

I found this recipe at Dancing by the Light. It looked like a fun way to make homemade gifts and who doesn't like cinnamon, vanilla and caramel!?

Preheat oven to 300 degrees Fahrenheit.
Generously grease a large baking sheet with butter.
Pop the popcorn (see below) with a hot air popper or stovetop.

Heat to simmering in a large stockpot over medium-high heat, stirring constantly:
½ cup packed brown sugar
½ cup pure maple syrup
¼ cup butter
½ teaspoon salt

Add:
8 cups popped popcorn (1/2 cup unpopped)
1 cup mixed nuts (optional)

Cook, stirring constantly until well coated, about 2 minutes.
Place on greased baking sheet, and bake at 300 degrees F. for 15 minutes, stirring occasionally.
Cool on waxed paper and let stand at room temperature until cool.
Store lightly covered.

Variations:

Cinnamon Vanilla Caramel Corn:
To the brown sugar mixture, add 1 teaspoon (or more) pure vanilla extract and 1 teaspoon cinnamon.

Amaretto Caramel Corn:
To the brown sugar mixture, add ½ teaspoon almond extract.
Instead of mixed nuts, use roasted whole almonds.