Preheat oven to 350F. Spray a bundt pan with oil.

Cut each container of cinnamon rolls into 5 pieces and cut each of those pieces into quarters.

Put diced apple in a small bowl.

In a separate bowl, whisk together cinnamon and sugar. Pour half on top of the apple and toss to combine. Place half of the apples in the bottom of the prepared pan.

Toss the remaining sugar with the cut cinnamon rolls. Put half of the cinnamon rolls in the bundt and top with the rest of the apples. Finish with the rest of the cinnamon rolls. Drizzle with the melted butter.

Bake 40 - 45 minutes or until golden brown. Let cool for about 10 minutes on a wire rack. Run a knife around the sides to loosen any stuck bits. Flip onto a serving platter and drizzle with icing.