
In a bowl, combine pumpkin and sugar.

Roll out the puff pastry with a rolling pin, cut into 3 equal rectangles, then cut the rectangles diagonally.

Place the filling on the wide edge of the dough triangle and roll up the croissant. Do this with the entire dough.

Line a baking tray with parchment. Grease the parchment with butter. Place the croissants and put the tray in the oven for 20 minutes at 180 °C.