Place a large pan over a medium heat. Add a small amount of butter (or oil) to the pan and once melted, spread it around so it covers the base.
Spread butter on one side of your bread and sprinkle grated cheese over it. Using your hands, press the grated cheese into the bread so it sticks to it.
Repeat with all 4 slices of your bread.
Turn your bread over and lay 4 slices of emmental cheese on it, as well as some freshly chopped chives. Make it into a sandwich by placing another prepared slice of bread on top - grated cheese-side up.
Repeat so that you now have two toasties ready to go.
Place both toasties into the preheated pan and fry on both sides for 3-4 minutes or until golden.