some leftover mashed potatoes (or whip up a new batch)
1 small onion, chopped
some olive oil
some salt, to taste
some pepper, to taste
some bread crumbs
Grab a skillet, and sauté the onions in a bit of olive oil.
Once they're softened, mix them into the potatoes.
Add some bread crumbs (this is where the judgment comes in, since the amount will depend on how much of the potato mixture you have). I added 1/4 cup of bread crumbs to about 5 small potatoes' worth of mashed potatoes.
Add as much salt and pepper as you like.
Heat up your skillet again, and coat the pan with olive oil.
Drop three patty-size amounts of potato mixture into the skillet (about how many patties will fit in the pan at once), wait until the bottom is browned (aka crispy and delish!), then flip.
Once the other side is browned, remove the patties.
Repeat until you've used up all the potatoes.
Serve with ketchup.
Now this recipe is gonna require some judgment on your part, so bear with me. It'll all depend on how much mashed potatoes you have.