Maple Bacon Bourbon Popcorn

oil (I use grapeseed) 1/3 cup popcorn kernels 1/2 cup chopped crispy bacon (5-6 strips) 1/2 cup pure maple syrup 1/4 cup (1/2 stick) unsalted butter 2 Tbs. Bourbon (I used Buffalo Trace) 1 tsp. Maldon (or other flaky) sea salt