Put a slice of cheddar, slices of old cheese and white cheese on one slice of bread, put the other slice on top of it and smear butter on the outside of the slices of bread, this is what makes the nice golden brown color. Now bake your bread in a pan on medium to low heat, turn when one side is golden brown. When both sides are nice golden brown take your grilled cheese out of the pan, put it on a plate and cut them in a way you like. And your grilled cheese is ready!
https://janetvos.wordpress.com/2017/09/25/grilled-cheese-with-3-cheeses-3-kazen-tosti/
