Pioneer woman Apple dumplings

1 Granny Smith apple
1 can crescent roll
1 sticks butter
1/2 cup of white sugar
½ teaspoon vanilla
1 teaspoon cinnamon
1 small can Mountain Dew
Preheat oven to 350 degrees.
Peel and core apples. Cut apples into 8 slices each. Roll each apple slice in a crescent roll. Place in a  buttered baking pan. Melt butter, then add sugar, and cinnamon, and barely stir. Add vanilla, stir, and pour over apples. Pour 3/4 of the can of Mountain Dew around the edges of the pan. Bake for 30 to 35 minutes, let cool. Serve with ice cream, and spoon some of the sweet sauces from the pan over the top.