It's easy! This method makes about 10 cups of popcorn. Use some for the cookies and enjoy the rest as a crunchy snack! In a large pot, heat 2 tablespoons of oil over medium-high heat. When the oil is hot, add ⅓ cup popcorn kernels, cover with the lid, and cook until all of the popcorn kernels are popped. Keep shaking the pot gently as the popcorn is made.