Breakfast · Part 1 of 3: Ingredients
Garlic Parmesan Hashbrowns: Shatteringly Crispy

- Prep
- Cook
- Total
- Serves
- 4
Golden, shatteringly crispy on the outside, fluffy and steaming within—these garlic parmesan hashbrowns turn the humble potato into a breakfast showstopper. The secret lies in parboiling the potatoes, shredding them thick, and squeezing out every drop of starch before frying.
A coating of parmesan and garlic powder creates a savory crust that crackles with every bite. Whether served alongside eggs or as a standalone snack, these hashbrowns deliver big flavor and texture in under an hour.
Hashbrowns are a beloved breakfast staple, but achieving that perfect crackle can be elusive. This recipe takes a foolproof approach: parboil the potatoes until just tender, shred them into thick strands, and wring out the starch so they fry up exceptionally crisp.
The addition of egg and cornstarch binds the mixture, while garlic powder and parmesan infuse every bite with savory depth. The result is a golden patty with a shattering crust and a tender, fluffy interior—ideal for weekend brunches or a quick weekday treat.
Ingredients
- 5 large russet potatoes
- 1 large egg
- 2 tbsp cornstarch
- 1 tsp garlic powder
- 1/2 tsp black pepper
- 1/2 cup freshly grated parmesan cheese
- Vegetable oil, for frying, to taste
Why this recipe works
The method starts with parboiling the potatoes rather than using them raw. This partial cooking softens the potato just enough to allow easy shredding while keeping the interior moist and fluffy once fried.
The thick shreds create a craggy surface that crisps beautifully in hot oil, giving the hashbrowns their signature crackle. By squeezing out the excess starch and moisture, you eliminate the steam that would otherwise make the patties soggy, ensuring a dry, crunchy exterior every time.
The binder of egg and cornstarch works in tandem to hold the shreds together without making the mixture heavy or doughy. Egg provides structure and richness, while cornstarch adds an extra layer of crispness as it fries.
The parmesan melts and browns, forming a savory, nutty crust that is both crunchy and flavorful. This combination of technique and ingredients transforms simple potatoes into a crave-worthy dish that stands up to any breakfast spread.
Notes and substitutions
For the best results, use russet potatoes—they have a high starch content and low moisture, which yields the crispiest hashbrowns. Yukon Golds are a fine substitute, though they may be slightly less crunchy. Freshly grated parmesan is essential; pre-shredded varieties often contain anti-caking agents that can affect the texture. The garlic powder adds a mellow, savory note; adjust the amount to taste.
When shaping the patties, press them firmly so they hold together during frying. If the mixture seems too wet, squeeze out more moisture with the cheesecloth. Use a heavy skillet, preferably cast iron, to maintain a steady oil temperature. Fry in batches to avoid overcrowding, which can lower the oil temperature and lead to greasy hashbrowns. Serve immediately for the ultimate crunch.
- russet potatoes: Yukon Gold potatoes work well; they have a slightly creamier texture but still crisp up nicely.
- cornstarch: Potato starch can be used in the same amount for an equally crispy coating.
- garlic powder: Granulated garlic is a fine substitute; use the same amount.
- parmesan cheese: Pecorino Romano adds a sharper, saltier flavor; reduce the added salt if using.
Equipment
- Large pot
- Cheesecloth
- Box grater or food processor
- Large mixing bowl
- Heavy skillet or cast-iron pan
- Spatula
- Paper towels
Up next · Part 2 of 3
6 steps · 30 min of cooking · what to look for at each stage
Step-by-step instructions (Part 2)