Choose oval size potatoes. Peel & if too rounded cut off a thin slice from one side so potatoes can sit in a dish without rolling. Cut each potato in thin slices from rounded side, cutting almost to be not through to base (make a fan). Melt butter till foaming, add oil & blend. Place spuds cut side up and spoon butter over spuds. Sprinkle with salt & pepper & cook in hot oven 30 minutes. Sprinkle with cheese cook further 15-20 minutes until spuds are golden brown.
—Maria Zamperoni