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!

[PigletJohn]

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.

[PlinkyPlonker]

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