Add the flour, milk, eggs, pumpkin puree, melted butter, sugar, pumpkin pie spice, vanilla, and salt into your blender. Blend everything for about 20 seconds, or until the batter looks completely smooth. Scrape down the sides if needed and give it one more quick pulse.
Let the batter sit for at least 10 minutes before cooking, though longer resting in the fridge gives even better results. This short rest lets the flour relax, which means your crepes turn out more tender instead of rubbery. I usually use this time to prep my filling.
Warm a lightly greased nonstick skillet over medium heat until it's hot but not smoking. A properly heated pan is the difference between crepes that release cleanly and ones that tear apart. Test with a small drop of batter first if you're unsure.
Pour about ¼ cup of batter into the center of the pan and immediately swirl it around to coat the bottom in a thin, even layer. Cook for about one minute, until the edges look dry and slightly golden. Flip carefully and cook the other side for just 20 to 30 seconds more.
Stack your finished crepes on a plate as you go, keeping them covered so they stay soft. Once you're ready to serve, spread on your favorite pumpkin crepe filling, fold or roll them up, and add any toppings you like.