We will prepare all the necessary products. Mustard or other loaf is perfect, it is advisable to take cheese that is not very hard, fusible.
Cut the apple into thin slices, grate the cheese on a coarse grater, chop the nuts, and lightly brush the slices of bread with butter.
Put the plates of apples on the bread, and grated cheese on them. Fry the sandwiches in a preheated frying pan, not completely covered with a lid. When the cheese starts to melt, sprinkle nuts on top.
These sandwiches should be eaten hot, they are especially delicious with aromatic coffee.