Crack the eggs and beat them well with salt and sugar.
Thinly slice the cabbage and carrot.
Add the shredded cabbage and carrot to the beaten eggs and mix well.
Heat butter in a pan and toast one slice of bread.
Flip the bread to toast the other side.
Remove the bread from the pan and pour the egg and vegetable mixture into the remaining butter.
When the egg is cooked, place it on top of the toasted bread.
Cover with another slice of bread and toast the whole sandwich once more in the pan.
Sprinkle sugar on top.