Preheat your oven to 350°F (175°C). Grease a 10-inch bundt pan generously with cooking spray or butter.
In a medium bowl, mix the granulated sugar and ground cinnamon together.
Open the cans of biscuit dough and cut each biscuit into quarters.
Roll each quarter into a small ball, then coat each ball in the cinnamon sugar mixture, ensuring they are thoroughly covered.
Layer half of the cinnamon-coated biscuit balls in the bottom of the prepared bundt pan.
Evenly spread half of the diced apples over the biscuit layer.
Sprinkle half of the remaining cinnamon sugar mixture over the apples.
Repeat the layers with the remaining biscuit balls, apples, and cinnamon sugar.
In a small bowl, mix the melted butter, brown sugar, caramel sauce, and vanilla extract until well combined. Pour this mixture evenly over the layered biscuit and apple mixture in the bundt pan.
Bake in the preheated oven for 30-35 minutes, or until the top is golden brown and the monkey bread is fully cooked.
Allow the bread to cool in the pan for about 10 minutes, then carefully invert it onto a serving plate. Allow it to cool slightly before drizzling more caramel sauce on top, if desired.
Optionally, sprinkle with chopped pecans or walnuts for added crunch before serving.
Notes
Drizzle with extra caramel sauce before serving for added sweetness.