Preheat your oven to 350°F (175°C).
Prepare a 9x13 inch baking dish by greasing it lightly with cooking spray or butter.
In a large bowl, mix the sliced apples with cinnamon and granulated sugar until well coated.
Cut the refrigerated biscuit dough into quarters and add to the apple mixture.
In another bowl, melt the butter and stir in brown sugar and vanilla extract until smooth.
Pour the butter mixture over the apple and biscuit mixture, gently stirring to combine.
Transfer the mixture to the greased baking dish and spread it out evenly.
Bake in the preheated oven for 30-35 minutes or until golden brown and bubbly.
Allow it to cool for a few minutes before serving.