Preheat your oven to 350°F (175°C).
Peel, core, and slice the apples into wedges.
In a bowl, mix sugar, cinnamon, and nutmeg.
Roll out the crescent roll dough and separate it into triangles.
Place a wedge of apple at the wide end of each triangle.
Sprinkle a bit of the sugar mixture over the apple.
Roll the dough around the apple, sealing the edges tightly.
Place the dumplings in a greased baking dish.
In a separate bowl, combine melted butter, water, and vanilla extract.
Pour the butter mixture over the dumplings and bake for 30 minutes.