I use leftover baked potatoes, if using fresh ones allow to cool completely. Shred, once the skin comes off I remove any large pieces and throw them out.
Chop two pickled jalapeno peppers and grate 1/2 cup of cheddar cheese.
Mix potatoes, jalapeno, cheese and egg together. Add just enough flour to make them sticky, about 1/4 c. Form patties and brown in a skillet or on a griddle that is generously greased with olive oil (or butter or bacon fat).