Boil the potatoes in water until well-cooked. Then drain and let cool.
Finely chop mushrooms and onion. Then place in a lightly oiled pan and fry them on medium heat until all the water has evaporated (about 15 minutes)
After 15 mins, add chopped garlic, parsley, and pepper and mix well. Set aside.
Peel and then mash the potatoes, adding the flour and salt.
Make potato cakes by first placing one tablespoon of potato- flour mix on your hand, tapping it lightly to form a thin patty. Then place about half a tablespoon of mushroom filling to the center of the potato patty. Cover with some more potato-flour mixture and stick well around to form a cake. Fry on hot oil for about 3 minutes each side or until they get golden brown.
Serve as an appetizer, side dish or dinner!