01 -
Using a box grater or food processor with shredding attachment, shred the peeled potatoes with the larger holes. Wrap the shredded potatoes in a clean kitchen towel and squeeze firmly to remove as much moisture as possible.
02 -
In a large mixing bowl, combine the dried potatoes, green onions, minced garlic, kosher salt, black pepper, and beaten egg. Mix everything together until well combined. Add the cornstarch and chopped corned beef, then gently fold everything together with a rubber spatula, sprinkling the cornstarch evenly throughout the mixture.
03 -
Place a large frying pan over medium-low heat and let it get nice and hot. Add the butter and olive oil, swirling the pan until the butter completely melts and combines with the oil.
04 -
Scoop about 1/4 cup of the mixture and gently shape it into a round patty with your hands - don't worry if it seems loose, just form it as best you can. Place it in the hot pan and repeat with 3-4 more fritters, making sure they don't touch each other or crowd the pan.
05 -
Let the fritters cook undisturbed for 3-5 minutes until they develop a beautiful golden-brown crust on the bottom. Carefully flip them over and cook for another 3-5 minutes until the second side is equally golden and crispy.
06 -
Transfer the finished fritters to a wire rack and immediately sprinkle with flaky sea salt. If you need to keep them warm, place them in a 200°F oven. Continue cooking the remaining batter in batches, adding more oil and butter to the pan as needed and letting it heat up before adding the next batch.