Prepare. Preheat your oven to 350. Also, prep a bundt style pan well for nonstick. Then place your prepared bundt pan on a rimmed baking sheet that can be used for baking.
Cinnamon Rolls. Open up the cinnamon rolls and gently separate them so that you can easily use them in after the next step.
Caramel Layer. In a medium sized saucepan combine together you brown sugar, butter, and cinnamon over low heat, stirring occasionally until the butter has melted and the ingredients are combined. Once the ingredients have melted your can stir in the pecans and vanilla extract and cook for another 30 seconds.
Layer. Carefully transfer the melted mixture from the last step to your prepared pan. Place the individual cinnamon rolls over the melted mixture so that the rolls stand side by side. Then pour your heavy cream over the rolls so that all of the rolls are covered with cream.
Bake. Cover the bundt cake with foil and then use the baking sheet to transfer the rolls to your oven. Bake the rolls for 25 minutes, carefully remove the foil, and continue to bake for another five minutes to get golden brown. Then remove the rolls from your oven.
Serve. Let the baked cinnamon rolls sit on the baking sheet for two minutes. Then place a large plate or serving dish on top of the bundt pan and carefully invert the pan so that the bottom gooey layer is on top of the rolls.