Leftover Mac and Cheese Soup ~
Got leftover mac and cheese?
Bring your leftovers back to life by serving them in a whole new way!
One of the best things about the day after Thanksgiving is all the leftovers but let’s be honest, some hold up better than others. Stuffing Muffins, Dressings, even the Green Bean Casseroles are all just as tasty the next day.
Mac and cheese can be a different story. It’s just the nature of the dish.
When left overnight in the fridge, pasta has a tendency to soak up whatever sauce it is sitting in. This can leave the dish drier overall and, well, it’s just not as good as it was that first day.
When faced with leftover mac and cheese, the best thing to do is repurpose it into a whole new and delicious meal.
This soup is rich, creamy, and ready to serve in about 20 minutes!
Ingredients for Leftover Mac & Cheese Soup
- 1/4 cup vegan butter
- 1/4 cup yellow onion, finely chopped
- 2 teaspoons garlic, minced
- 1/4 cup all-purpose flour
- 4 cups vegan chicken-style broth
- 2 cups vegan cheddar cheese
- 4 ounces vegan cream cheese
- 1/3 cup mild-flavored plant milk, such as oat or unsweetened almond
- 1/4 teaspoon ground black pepper
- 4 cups prepared mac & cheese
How to make Leftover Mac & Cheese Soup
STEP ONE: Into a large pot over medium-high heat, add the butter. When the butter is melted, add the onions. Cook, stirring frequently for 2 minutes, until softened and fragrant.
STEP TWO: Add garlic and continue cooking for an additional 30 seconds.
STEP THREE: Whisk in the flour until incorporated; the mixture will be thick.
STEP FOUR: Gradually add the broth, whisking until the consistency is smooth.
STEP FIVE: Bring just to a boil then reduce the heat to low.
STEP SIX: Into the pot, add the cream cheese, cheddar cheese, milk, and black pepper. Stir frequently until cheeses are melted.
STEP SEVEN: Add the prepared mac and cheese, stirring to distribute throughout the soup.
STEP EIGHT: Adjust seasoning to taste and serve hot.
More Cheesy Recipes You’ll Love!
- Creamy Vegan Mac and Cheese
- Easy Cheesy Tetrazzini
- Cheesy Cauliflower Soup
- Vegan Pub Style Beer Cheese Dip
- Cheesesteak Sloppy Joes
Follow This Wife Cooks on Instagram | Facebook | Pinterest
Originally published on December 1, 2015. Updated October 15, 2021.
Leftover Mac and Cheese Soup
Ingredients
- 1/4 cup vegan butter
- 1/4 cup yellow onion finely chopped
- 2 teaspoons garlic minced
- 1/4 cup all-purpose flour
- 4 cups vegan chicken-style broth
- 2 cups vegan cheddar cheese
- 4 ounces vegan cream cheese
- 1/3 cup mild-flavored plant milk such as oat or unsweetened almond
- 1/4 teaspoon ground black pepper
- 4 cups prepared mac & cheese
Instructions
- Into a large pot over medium-high heat, add the butter. When the butter is melted, add the onions. Cook, stirring frequently for 2 minutes, until softened and fragrant.
- Add garlic and continue cooking for an additional 30 seconds.
- Whisk in the flour until incorporated; the mixture will be thick.
- Gradually add the broth, whisking until the consistency is smooth.
- Bring just to a boil then reduce the heat to low.
- Into the pot, add the cream cheese, cheddar cheese, milk, and black pepper. Stir frequently until cheeses are melted.
- Add the prepared mac and cheese, stirring to distribute throughout the soup.
- Adjust seasoning to taste and serve hot.
thiswifecooks
Thank you! I’ve updated the recipe. 🙂
Whitney
I cant find the updated version…how much broth total?
thiswifecooks
4 cups 🙂
Kayla DiMaggio
I have to be honest when I say I never have leftover mac and cheese lol! However, I am made a double batch of mac and cheese just to make this recipe and we all raved over it!
thiswifecooks
Lol leftover mac and cheese is a rare occurrence around here too! We do usually have enough for soup leftover after Thanksgiving though and it’s nice to turn it into a whole new meal!
Chantry
I love this idea so much! I might make Mac and cheese just so I can turn it into soup!
thiswifecooks
I have definitely done that!
NATALIA
Mmmm! This soup looks so creamy! What a great way to repurpose mac and cheese leftovers, I have to try it. Thanks for sharing!
thiswifecooks
Yes! I hope you love it as much as we do!
Emily
This is a brilliant use of leftover mac and cheese! It’s delicious and pure comfort food, thank you for the recipe!
Maiko
Who knew mac and cheese could be a soup?! This looks absolutely delicious! I never have leftover mac and cheese haha though I need to make loads just to make this recipe!
Leonardeffery
Dayuuuuuuuum Yuuuuuuummmmmmmy Yummy In MyTummy
Minion
Ikr 😼