Apples, Brown Sugar, Unsalted Butter, Apple Pie Spice, Kosher Salt, and Vanilla Cake mix
Preheat the oven to 350 degrees Fahrenheit.
Spray a 9×13 inch baking dish with cooking spray. Then toss the apples, brown sugar, apple pie spice, and salt together.
Pour the cake mix on top of the apple mixture. Then pour the melted butter over the top of the cake mix.
Bake until the top of the cake is golden brown (about 50 minutes).