Preheat oven to 350°F and line a small baking tray with parchment paper.
Take one whole bulb of garlic and slice the top ¼" off the top. Drizzle 1 tsp olive oil on top and wrap in a small square of aluminum foil. Bake for 30 minutes and let cool until just warm enough to handle.
Add all remaining ingredients to the jug of a high-speed blender or food processor. Squeeze the garlic cloves out of the papery skin into the jug. Seal with the lid and blend until smooth, stopping to scrape the sides with a spatula and tampering the mixture down towards the blades as needed.
Transfer hummus to a bowl. Garnish with additional pumpkin pie spice, maple syrup or olive oil (or all 3). Enjoy!
