01 - Heat vegetable oil in a large pot over medium heat. Add popcorn kernels and cover with a lid. Shake the pot occasionally until popping slows. Remove from heat and transfer 6 cups of popped kernels to a large bowl, discarding any unpopped kernels.
02 - Melt unsalted butter in a small saucepan over medium-low heat. Stir in brown sugar, molasses, ground ginger, cinnamon, nutmeg, cloves, and salt. Cook while stirring constantly until the mixture bubbles, about 2 to 3 minutes. Remove from heat and stir in vanilla extract.
03 - Immediately pour the warm gingerbread mixture over the popped popcorn. Toss quickly with a spatula or clean hands to ensure even coating.
04 - Spread the coated popcorn onto a parchment-lined baking sheet. Allow to cool for 10 minutes to set the coating. Break apart large clusters before serving.