This might be called "Leftover Mashed Potato" cakes but most of the time, I will make mashed potatoes especially to make these! Great for breakfast, lunch OR dinner! I made these with bacon but they're also lovely with canned tuna (drained of oil) or even diced cooked chicken or any other protein.
Mix together the Potato Cake ingredients in a bowl until just combined.
Spread the panko or flour out on a large plate or baking tray (to fit 6 patties).
Measure out 1/4 cup level amount of potato mixture OR a slightly heaped ice cream scooper (this is what I use because using the lever, it pops out easily) and drop onto panko/flour. Repeat to fill plate / baking tray (don't crowd, difficult to handle).
Use an egg flip (or base of cup) to pat it down to 1.5cm/2/3" thick patties, then flip and pat to coat the other side with panko/flour. Set aside and repeat with remaining potato mixture.
Heat 1/2 the oil in a large skillet over medium high heat. Cook 6 patties at a time until golden brown on each side - around 2 minutes, then flip and cook the other side.
Remove onto a paper towel lined baking tray. Cook remaining patties.