Add the warm mashed potato in a bowl together with the yeast, sugar, flour, oil, salt and the milk. You can either make it in a machine or by hand. I made it in the Kitchen Aid and worked it by hand after that.
Knead the dough for about 5-7 minutes with the machine until smooth. If you knead by hand you need a bit longer than that.
If it is too sticky knead it longer and add a bit more flour if needed. Place the dough in a clean bowl rubbed with a bit of oil and cover with a clean tea towel.
Leave to rise for an hour or until doubled in size.
Divide the dough into four pieces. Make balls out of each piece and place them on a board dusted with some flour, cover and leave to rise for another 20 minutes.
Take a large pan and heat the oil to 180˚C. (350˚F)
Flatten each ball and stretch it a little. Bake in the hot oil until golden brown. Brush it with the garlic cloves as soon as it comes out of the oil. Cover with cream and sprinkle with the grated cheese.
Langos van Paper Travels https://papertravels.com/hungarian-langos-what-is-it-and-how-do-you-make-it/