In a pan, combine brown sugar, butter, salt, and cinnamon over low heat.
Stir gently until sugar and butter have melted.
Add in the toasted pecans and vanilla.
Pour pecan mixture into the bottom of the pan.
Add cinnamon rolls standing on their sides on top of the pecan mixture.
Pour heavy cream over the cinnamon rolls.
Place the bundt pan on a cookie sheet in case there's any spillage.
Cover with foil.
Bake for 30 minutes.
Remove foil and bake for 5 minutes.
Remove from oven and let cool for 1-2 minutes.
Invert onto a serving tray.
Serve and enjoy!
Notes
Make sure you spray the bundt cake pan very well so nothing sticks when you remove the buns after baking then place the bundt pan on a cookie sheet before baking in case of any spillage.