This addicting caramel popcorn is loaded with tons of cinnamon and toasty pecans and makes the absolute best holiday snack! Make a double batch because it's going to disappear that fast.
In an air popper, pop popcorn kernels and place in a large bowl with pecans. Preheat oven to 250F and line two baking sheets with parchment paper. Set aside.
In a medium saucepan over medium heat, melt butter. Whisk in sugar, agave, cinnamon, and salt until smooth. Cook caramel over medium heat, stirring occasionally until sugar is dissolved and caramel is bubbly and thickened, about 5 minutes. Remove caramel from heat and whisk in vanilla and baking soda.
Immediately pour hot caramel over popcorn and pecans. Gently stir until popcorn and nuts are evenly coated. Spread popcorn evenly on two prepared baking sheets. Bake popcorn at 250F 1 hour until popcorn is crispy and caramel is golden. Let stand 30 minutes to set before breaking into pieces. Enjoy!