If you have leftover mashed potatoes sitting in the refrigerator, these Cheesy Mashed Potato Puffs are one of the easiest ways to turn them into something completely new. Soft mashed potatoes are mixed with cheddar, Parmesan, eggs, sour cream, green onions, and seasonings, then baked in a muffin pan until puffed, golden, and lightly crisp around the edges.
The recipe uses 2 cups mashed potatoes, 2 eggs, 1 cup shredded cheddar, ¼ cup Parmesan, ¼ cup sour cream or Greek yogurt, green onions, garlic powder, and a small amount of baking powder, producing 12 individual potato puffs.
These cheesy potato puffs work beautifully as a side dish, appetizer, brunch item, lunchbox addition, or game-day snack. Serve them warm with sour cream, ranch, garlic aioli, or your favorite dipping sauce.
Why You’ll Love These Cheesy Mashed Potato Puffs
These puffs are especially useful when you have leftover mashed potatoes but do not want to simply reheat them.
Eggs help bind the mixture while cheddar and Parmesan add structure, flavor, and golden edges. Sour cream or Greek yogurt keeps the centers soft, and baking powder gives the mixture a little lift.
Because they bake in individual muffin cups, every puff develops its own crisp edges while staying creamy and fluffy inside.
Ingredients
For the Potato Puffs
- 2 cups cold mashed potatoes
- 2 large eggs
- 1 cup shredded sharp cheddar cheese
- ¼ cup freshly grated Parmesan cheese
- ¼ cup sour cream or plain Greek yogurt
- 2 tablespoons chopped green onions or chives
- ½ teaspoon garlic powder
- ½ teaspoon baking powder
- ½ teaspoon kosher salt, or to taste
- ¼ teaspoon freshly ground black pepper
These quantities follow the main formula from the linked recipe.
For Extra Garlic Parmesan Flavor
- 2 garlic cloves, finely minced
- 2 tablespoons chopped fresh parsley
- ¼ teaspoon onion powder
- ¼ teaspoon smoked paprika
- ¼ cup additional Parmesan cheese
For the Muffin Pan
- 1 tablespoon softened butter or nonstick cooking spray
Optional Toppings
- ½ cup additional shredded cheddar
- Extra Parmesan
- Chopped chives
- Crispy bacon
- Cracked black pepper
For Serving
- Sour cream
- Ranch dressing
- Garlic aioli
- Spicy mayo
- Marinara sauce
How to Make Cheesy Mashed Potato Puffs
1. Preheat the Oven
Preheat your oven to 400°F (200°C).
The original recipe also uses a 400°F oven and a standard 12-cup muffin tin.
2. Prepare the Muffin Pan
Grease a standard 12-cup muffin pan generously with butter or nonstick cooking spray.
Pay special attention to the sides of each cup because the cheese creates crispy edges that can stick.
3. Check Your Mashed Potatoes
Cold, relatively thick mashed potatoes work best.
If your mashed potatoes are very loose because they contain a lot of cream or butter, refrigerate them until firm before beginning.
The source specifically recommends avoiding thin or soupy mashed potatoes because a stiffer mash holds its shape better.
4. Place the Potatoes in a Bowl
Add the mashed potatoes to a large mixing bowl.
Break apart any very firm refrigerated clumps with a spoon.
5. Add the Eggs
Crack in the eggs.
Mix until they are evenly incorporated into the potatoes.
6. Add the Sour Cream
Stir in the sour cream or Greek yogurt.
This adds creaminess without making the mixture excessively loose.
7. Add the Cheddar
Fold in the shredded cheddar cheese.
Sharp cheddar works particularly well because its stronger flavor stands up against the potatoes.
8. Add Parmesan
Stir in the Parmesan.
Reserve a little extra for the tops if desired.
9. Add the Aromatics
Add:
- Green onions or chives
- Minced garlic
- Parsley
Mix until evenly distributed.
10. Season the Mixture
Add garlic powder, onion powder, smoked paprika, salt, and black pepper.
Remember that leftover mashed potatoes may already contain salt, so taste carefully before adding too much.
11. Add Baking Powder
Sprinkle in the baking powder.
Mix just until incorporated.
The linked recipe uses ½ teaspoon baking powder to help create a lighter, slightly puffed texture.
12. Check the Consistency
The mixture should be thick enough to mound on a spoon.
If it looks excessively loose, refrigerate it for 15–20 minutes.
13. Divide into Muffin Cups
Spoon the potato mixture evenly into the muffin pan.
Fill each cup approximately ¾ full.
The original method uses the same filling level.
14. Smooth the Tops
Use the back of a spoon to lightly smooth each portion.
Do not pack the potato mixture down heavily.
15. Add Extra Cheese
Sprinkle cheddar and Parmesan over each puff.
This creates a more golden, crispy cheese crust.
16. Bake
Bake for approximately 20–25 minutes.
The puffs should rise slightly and become golden around the tops and edges.
17. Check the Edges
Look for browned edges where the cheese meets the muffin pan.
That caramelized edge is one of the best parts of the finished puff.
18. Give Pale Puffs More Time
If the tops are still pale after 20 minutes, continue baking for another 3–5 minutes.
19. Broil if Desired
For an especially cheesy golden top, broil for approximately 30–60 seconds.
Watch closely.
20. Cool in the Pan
Remove the muffin pan from the oven.
Allow the potato puffs to cool for approximately 5 minutes before removing them. This brief cooling period is also recommended in the original recipe.
21. Loosen the Edges
Run a thin knife or small offset spatula gently around each puff.
22. Remove Carefully
Lift each puff from the muffin pan.
They will firm slightly as they cool.
23. Garnish
Finish with fresh chives, parsley, extra Parmesan, or cracked black pepper.
24. Serve
Serve warm with sour cream, ranch, garlic aioli, or another dipping sauce.
What to Serve With Cheesy Mashed Potato Puffs
These puffs work as a versatile potato side dish.
Serve them alongside:
- Roast chicken
- Grilled chicken
- Steak
- Pork chops
- Meatloaf
- Pot roast
- Roast turkey
- Salmon
- Garlic shrimp
They also pair beautifully with vegetables such as:
- Roasted broccoli
- Green beans
- Asparagus
- Brussels sprouts
- Glazed carrots
- Garden salad
For brunch, serve them with:
- Scrambled eggs
- Fried eggs
- Bacon
- Breakfast sausage
- Fresh fruit
Tips for the Best Cheesy Mashed Potato Puffs
Use Cold Mashed Potatoes
Cold mashed potatoes are firmer and easier to portion into the muffin pan.
Avoid Watery Potatoes
Very loose mashed potatoes can prevent the puffs from holding their shape.
Grease the Pan Generously
Melted cheese can stick strongly to an ungreased muffin tin.
Use Freshly Shredded Cheese
Freshly shredded cheddar tends to melt more evenly than heavily coated pre-shredded varieties.
Don’t Overfill the Cups
Leave a little space for the mixture to puff during baking.
Let Them Rest Before Removing
Trying to remove them immediately can cause the soft centers to break apart.
Use a Metal Muffin Tin
A metal pan generally produces crispier edges than silicone.
Easy Recipe Variations
Loaded Mashed Potato Puffs
Add:
- ½ cup crispy crumbled bacon
- Extra cheddar
- Chopped chives
This loaded variation is also suggested in the source recipe.
Garlic Herb Potato Puffs
Increase the garlic and add:
- Parsley
- Chives
- Thyme
- Rosemary
Jalapeño Cheddar Puffs
Add 1 finely diced jalapeño and replace some cheddar with pepper Jack.
Bacon Parmesan Potato Puffs
Mix crispy bacon with Parmesan and cheddar.
Spinach Cheese Puffs
Add 1 cup cooked spinach, squeezed very dry and finely chopped.
Ham and Cheese Potato Puffs
Add ¾ cup finely diced cooked ham.
Breakfast Potato Puffs
Add cooked crumbled breakfast sausage and extra cheddar.
The original recipe also suggests sausage as a breakfast-style variation.
Caramelized Onion Puffs
Fold cooled caramelized onions into the potato mixture for extra savory sweetness.
How to Store Leftovers
Allow the potato puffs to cool completely.
Transfer them to an airtight container and refrigerate for up to 4 days, consistent with the linked recipe’s storage guidance.
Reheating in the Oven
Place the puffs on a baking sheet.
Reheat at 350°F (175°C) until hot and lightly crisp again.
Reheating in the Air Fryer
Air fry at approximately 350°F for several minutes.
This is one of the best ways to restore the crispy exterior.
Microwave
Microwaving will warm them quickly, but the edges will become softer.
Freezing Mashed Potato Puffs
These puffs are freezer-friendly.
Allow them to cool completely.
Arrange them on a tray and freeze until firm.
Transfer them to a freezer-safe container or bag.
Freeze for up to approximately 2 months. The source recommends reheating frozen puffs in the oven for the best texture.
Frequently Asked Questions
Can I use leftover mashed potatoes?
Yes.
Leftover mashed potatoes are actually one of the best choices for this recipe because they are usually cold and firm.
Can I use freshly made mashed potatoes?
Yes.
Allow them to cool before mixing in the eggs and cheese.
Why did my potato puffs fall apart?
The mashed potatoes may have been too wet, or the puffs may have been removed from the pan before they had time to set.
What cheese works best?
Sharp cheddar is an excellent choice, but Gruyère, mozzarella, fontina, or pepper Jack can also work.
Do I need flour?
No.
The linked recipe does not use flour; eggs, cheese, and the potato mixture provide the structure.
Can I make them ahead?
Yes.
Bake them ahead, refrigerate, and reheat in the oven or air fryer when ready to serve.
Can I add bacon?
Absolutely.
Cook the bacon until crisp, crumble it finely, and fold it into the mixture.
Can I make mini potato puffs?
Yes.
Use a mini muffin pan and begin checking them considerably earlier because smaller portions cook faster.
Final Thoughts
These Cheesy Mashed Potato Puffs transform simple leftover mashed potatoes into golden individual bites with crisp cheesy edges and soft, fluffy centers.
The linked recipe keeps the core method very simple: combine 2 cups mashed potatoes with eggs, cheddar, Parmesan, sour cream, green onions, garlic powder, seasoning, and baking powder, divide into a muffin pan, and bake at 400°F for about 20–25 minutes.
For the best results, use relatively thick mashed potatoes, grease the muffin tin generously, add extra cheese to the tops, and give the puffs five minutes to set before removing them. Serve them with sour cream, ranch, or garlic aioli for an easy side dish, appetizer, or creative way to use leftover mashed potatoes.