Make the pumpkin pie spice - Combine spice blend ingredients in a small mason jar, and shake vigorously to combine.

Toast and salt the pepitas - Add the raw pepitas to a heavy skillet over medium-high heat. Cook them until they begin to get some browned edges, and glisten a bit as they release their oil. Stir often to keep them from burning. This will take about 5 minutes (depending on heat). Salt generously, and remove from the skillet.

Make the caramel - Add the sugar (raw or white) to the same skillet over medium-high heat. Once the sugar begins to melt, stir constantly until the mixture is completely caramelized. Reduce heat to medium.

Candy the pepitas - Add the toasted pepitas back into the skillet, along with the pumpkin pie spice. Using a spatula, stir vigorously to combine with the caramel. This will take some effort!

Finish - Scoop the pepitas onto parchment, waxed paper, or foil. Sprinkle or grind a bit of sea salt over the top. Allow them to cool completely. Break into clusters, and add to an airtight container.