
Whenever there’s leftover mashed potatoes hanging out in my fridge, I turn them into gooey little cheese puffs. Baking these up with a bunch of cheese changes those basic leftovers into tasty, golden bites everyone wants to steal off the snack plate. They always vanish at gatherings and honestly, they’re just as tasty the next day for a speedy lunch or something on the side.
First time I made these was because I wanted a no-fuss snack for a cozy movie night. Turned out they felt a bit fancy and now the kids beg for them any time we have leftovers around the holidays.
Tasty Ingredients
- Eggs: Two Make sure they’re beaten so the mix all comes together Easily found just use regular large eggs
- Salt: Add a little to make everything pop Taste your potato mix first and shake in more if it’s bland
- Sour cream: About one third cup Helps everything get creamy and rich Grab full-fat for a more luxurious bite
- Fresh chives: A couple tablespoons Chopped up for some fresh flavor and color Look for bright, firm chives
- Parmesan cheese: Two tablespoons The finely grated stuff mixes in super easy Brings a zippy flavor
- All-purpose flour: About a quarter cup Just enough for structure so they don’t fall apart Use gluten-free if needed
- Shredded cheese: One cup A block of cheddar or mozzarella is best when you grate it yourself Nothing melts quite like fresh
- Mashed potatoes: Three cups Cold mashed potatoes work best since they stick together and get crispy
Easy Directions
- Let Them Cool
- Give those puffs a minute to cool off so you don’t burn your fingers. Grab a knife or a skinny spatula and pop them out of the muffin pan. Enjoy while they’re still warm, plain or with your favorite dip.
- Time to Bake
- Put the whole tray in a hot oven at four hundred. Bake for twenty to twenty-five minutes. You’ll know they’re done when the edges shrink up and everything looks golden brown.
- Fill Your Muffin Tin
- Once your mix tastes right, scoop big spoonfuls into greased muffin cups. Fill them about three quarters of the way so they don’t overflow but still get puffy.
- Mix in Your Mash
- Fold your potatoes gently into the eggy, cheesy bowl. Don’t overdo it — you want little bits of potato showing for the perfect texture.
- Add The Flavor Stuff
- Now drop in the shredded cheese, Parmesan, and chives. Stir until the green bits and cheese are all mixed in.
- Make It Creamy
- Whisk the eggs and sour cream together in a big bowl until you can’t see any eggy streaks. You want it totally smooth for a fluffy end result.

Parmesan’s the one ingredient I never skip. It takes the taste up a notch. I still remember the first time we used up leftover mashed potatoes after Thanksgiving for these — my whole family suddenly got excited for leftovers.
Leftover Solutions
Pop the extras in a sealed container and keep them in your fridge up to three days. When you’re ready, reheat in your oven or toaster oven to get them crispy again. To stash them longer, freeze them on a pan before tossing in a ziptop bag—then just bake from frozen when hunger hits.
Swap-Out Options
Use any cheese hanging out in your fridge—Gruyere is awesome for a nutty note or go lactose-free if that’s what you need. Gluten-free flour blends work just as well as regular flour here. You can even hide in more herbs or a handful of veggies for extra color.

Ways to Serve
Pair these with steak or roast chicken for comfort food vibes. Dip in spicy sriracha, tangy Greek yogurt with herbs, or sour cream. For kids’ parties, I set out ketchup and ranch and they’re always the first thing gone.
Background Info
Across different cultures, dishes like these show up to make the most of leftovers. You’ll spot them after a big Sunday meal or holidays, especially in Europe. There’s something special about giving yesterday’s dinner a fresh twist.
Recipe FAQs
- → Which cheeses should I use for these puffs?
Cheddar and mozzarella melt nicely, but go ahead and throw in Gouda, Gruyère, or whatever blend you like for different textures and flavors.
- → Is it possible to make these gluten-free?
Yep, just swap out regular flour for a gluten-free mix and you’ll still get that crispy outside.
- → Why do I need the mashed potatoes to be cold?
Colder mashed potatoes hold up better, so your puffs don’t fall apart and the texture stays spot on when they’re baking.
- → How can I make them really crunchy?
Try tossing some breadcrumbs on top before baking. Or leave them in the oven a little longer to get extra brown and crispy.
- → Can I prep these in advance?
For sure. Keep them in the fridge and rewarm in the oven next day—they actually taste even better!