I'm having trouble making grilled cheese, what am I doing wrong? When I cook grilled cheese, I put a tablespoon of butter on the pan, and the pan is hot enough that it quickly melts and sizzles.
However, when I put the bread on, it just soaks in the liquid butter on the pan and the bread doesn't make any sizzling noises. I also use mozzarella cheese as my cheese for grilled cheese. Why won't my bread cook?
Preheat your pan on low to low-medium.  Build your sandwich.  Butter the bread or the pan.  It doesn't matter.  Place the sandwich in the pan.  Keep the heat low, to low-medium.  Wait.  Check the underside, looking for a golden brown.  You want the heat low, because you want the cheese to begin melting without burning the bread. Be patient.  When you see evidence of the cheese softening and a golden toasting, flip your sandwich.  Again, be patient.  You may have to adjust heat until you find the sweet spot for your stove, but keep it low, and complete the task by looking for melted cheese and golden toast.