Place your unwrapped block of cream cheese on a microwave-safe plate and heat it for about 5 seconds on high power. Keep a close eye on it, since a few extra seconds can cause it to melt instead of just soften. If you have more time, letting it sit at room temperature for 30 minutes works just as well.
Add the softened cream cheese, pumpkin puree, powdered sugar, cinnamon, pumpkin pie spice, and vanilla extract to your food processor. Having everything measured out ahead of time makes this next part go by in seconds.
Pulse and blend continuously until the mixture turns completely smooth and creamy, pausing once or twice to scrape down the sides. You're looking for a fluffy, uniform texture with no visible lumps of cream cheese left behind.
Scoop the finished dip into your serving bowl using a rubber spatula to get every last bit out. Cover and refrigerate it for at least 20 minutes if you have time, which helps the flavors meld together beautifully.
Once chilled, give the dip a quick stir since it firms up slightly in the fridge. Set it out with your dippers of choice and watch it disappear within minutes.