How to Make It
Preheat the oven to 350°F.
Place apples, sugar, flour, cinnamon, and vanilla in a large bowl, stirring to combine. Set aside.
Halve each pre-cut cinnamon roll and roll out into ⅛-inch-thick pieces.
Line the bottom of a lightly-greased pie dish with the flattened cinnamon buns, reserving 5 pieces for the top. Pour the apple mixture into the pie pan.
Lay the cinnamon bun strips over the pie to create a lattice pattern.
Bake the pie for 25 minutes, or until the apples are tender and the crust is golden brown.