Preheat the oven to 375°F and line a medium sheet pan with parchment paper.
In a medium sized bowl add, pumpkin purée, sugar, brown sugar, vanilla extract, cinnamon and egg yolks and mix together.
Lightly dust a flat surface with flour to set the puff pastry on and spread out gently, put a thin layer of the filling all over the puff pastry.
Using a a knife or a pizza cutter on the wider side, cut into long triangles.
Roll each triangle into a crescent ( always start rolling on the wider side ) and place on a baking sheet.
You can mix an egg and a little bit of water together and use a baster to egg wash the tops of them before placing in the oven. (Optional)
Bake for 15 minutes or until a little golden brown.
