Wash the potatoes thoroughly, cover and boil them in water for about 15 minutes. Meanwhile grate cheese and mix with sour cream. Season with salt and pepper. Preheat the oven (electric cooker: 225°C/circulating air: 200°C/gas: level 4).
Line a baking tray with baking paper. Drain the potatoes. Score each potato and break open a little. Put them on the baking tray. Spread sour cream on top. Bake in a hot oven for 15-18 minutes.
Rinse meat, dab dry and cut into strips. Heat oil in a pan. Fry the meat for 3-5 minutes while turning it. Season with a little salt and pepper. Add barbecue sauce, mix everything and bring to the boil once.
Take the potatoes out of the oven and spread the meat on top.