Peel your garlic clove and drop it into the food processor bowl on its own first. Pulse it a few times until it's finely minced. Doing this step separately keeps you from biting into a big chunk of raw garlic later, which can overpower the whole dip.
Open your can of chickpeas and pour them into a strainer, but don't toss that liquid. That starchy liquid, called aquafaba, is handy if your hummus turns out thicker than you'd like later on. Give the chickpeas a quick rinse if you prefer a milder flavor.
Add the drained chickpeas, pumpkin puree, salt, cumin, lemon juice, maple syrup, and olive oil right into the bowl with your minced garlic. If you want a little kick, toss in that pinch of cayenne now before you start blending.
Run the food processor continuously, stopping every so often to scrape down the sides with a spatula. I usually blend for about 60 to 90 seconds total until the mixture turns completely smooth with no visible chickpea skins.
If your hummus feels too thick or stiff, add a splash of that reserved chickpea liquid, one tablespoon at a time, and blend again. I like mine on the thicker side for dipping, but a little looser is nice for spreading.
Give it a taste and adjust the salt, lemon, or cumin to your liking. Transfer it to a serving bowl, add your favorite toppings, and it's ready to go straight away or after a short chill in the fridge.