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4.25 from 185 votes

Life-Changing Leftover Mashed Potato Soup

Prep Time10 mins
Cook Time20 mins
Course: Soups
Cuisine: American
Keyword: Easy, Holiday
Product Type: Broths & Stocks


  • 4 cups leftover mashed potatoes
  • 3 tbsp butter
  • 2/3 cup flour
  • 2 cups whole milk
  • 4 cups Pacific Foods Organic Low Sodium Chicken Broth
  • 1 cup cheddar cheese divided
  • 1/2 tsp black pepper
  • 1/2 tsp sea salt
  • 1/2 cup sour cream to garnish
  • 1/2 cup green onions diced, to garnish
  • 4 strips bacon cooked and crumbled, to garnish


  • Add butter to a large stock pot over medium heat.  Sprinkle in flour once butter has melted. Stir well. Slowly whisk milk into flour, stirring frequently until thickened.
  • Whisk broth into flour mixture, stirring frequently. Bring mixture to a simmer. Add mashed potatoes, ¾ cup cheese, sea salt and pepper.
  • Stir until thickened, cheese is melted, and the soup is warmed. If the soup is too thick, use an immersion blender to blend everything together or add another splash of broth or milk.
  • Divide soup into bowls and garnish with sour cream, remaining cheddar cheese, green onions, and bacon crumbles. Enjoy!