Wash the potatoes and cook in boiling water for about 20 minutes. Quench cold, let cool, peel and cut into thin slices. Cut bacon into cubes. Peel onions, cut into rings and fry in hot oil.
Remove from the pan and leave the bacon out of the pan. Add potato slices and fry for 8-10 minutes until golden brown. Turn several times in between. Season with salt and pepper. Remove potatoes and bacon from the pan.
Put the pancake base mix in a mixing bowl. Gradually stir in 1/4 litre of cold water. Add eggs. Depending on the size of the pan, add 1/4 or 1/2 of each potato to the pan. Pour on 1/4 or 1/2 of the pancake batter and let it set at low heat.
Slide out of the pan with the help of a lid and turn. Bake until golden brown. Wash the chives and cut into small rolls. Sprinkle on omelettes.