If you’re staring at a bowl of leftover mashed potatoes after your Thanksgiving feast, this cozy and creamy leftover mashed potato soup is your new favorite way to give them a second life!
Cook diced bacon in a medium or large pot over medium heat until crispy. Transfer to a paper towel–lined plate and set aside, keeping 1 tablespoon of the drippings in the pot.
Add onion to the pot and sauté over medium heat for 5 minutes, until softened.
Pour in the bone broth and bring to a gentle simmer.
Whisk in the mashed potatoes until the soup becomes smooth and creamy.
Stir in the heavy cream and vegetables and let simmer for 2 minutes.
Serve immediately, dividing the soup among 4 bowls. Top each bowl with about 1/4 cup shredded cheese, 2 tablespoons of bacon, and 1 tablespoon chives.
This soup is delicious served with leftover holiday rolls or a small side salad.