In a mixing bowl, combine the pumpkin puree, brown sugar, cinnamon, nutmeg, ginger, salt, heavy cream, and vanilla extract. Mix until smooth and well combined.
Heat a large skillet over medium heat.
Lightly warm each flour tortilla for about 30 seconds on each side until pliable.
Spoon a generous amount of the pumpkin mixture onto the center of each tortilla.
Fold the tortilla in half to create a taco shape.
Place the filled tacos back in the skillet and cook for an additional 1-2 minutes on each side until they are slightly crispy and warmed through.
Remove the tacos from the skillet and dust with powdered sugar.