What's wrong with my cheese on toast?

[PlinkyPlonker]

Sometimes I cook cheese on toast and the cheese behaves. It puffs up a little, goes a bit brown and toasty on top. All as it should be. Other times the cheese melts and the oil/fat sort of boils on top (eurgh!) and my melted cheese looks pock-marked and there is no puffy/gooey/toasty lovelyness.

I always use the same cheese (Cathedral City) and I use a gas grill. Is my grill too high or too low? Or is there a special cheese that would guarantee me the cheese high I'm looking for?

I'm sorry this is a boring question but I've just had a very disappointing dinner!

you are cooking it too fast.

use a lower temperature

if you can manage to get it hot and soft, but not melted or burned, it should be better. Try it in the oven.

Shall try the oven. Thanks, I knew someone on MN would know the answer and where I was going wrong!