1 unsliced loaf sourdough bread
1 stick butter, melted
2 cups shredded mozzarella cheese
1/2 cup shredded cheddar cheese
On a cutting board slice the bread into about 1/2 inch slices being careful not to cut all the way through the bottom. Turn the bread and cut across the slices you made in 1/2 inch slices. You'll have to squeeze the bread a little to make sure you're not just ripping through it because it will fall apart. It helps if you have someone else hold the already cut slices together. But again be careful not to cut all the way through the bottom of the bread.
Next, put your bread on the foil and your hand underneath the bread to open it up and sprinkle the mozzarella cheese in every crack you can find. In some places you'll have to kind of shove it in there. Sprinkle the cheddar cheese over the top. (The pictures show me doing this backwards, it only makes a difference if you don't drizzle the butter on, if you brush it on you'll want to do that before the cheese)
Then drizzle your melted butter over the top, try and get it as even as you can. If you'd prefer to brush the butter over the top (which I did this time) and in between the layers do so before the cheese. If you do it this way you will get buttery and the cheese will stick to the bread so there are pros and cons of doing it this way. I prefer the drizzle..
Last, wrap the bread in foil and place on a baking sheet and into a 350 degree oven for 15 minutes. Take it out, uncover the top and bake for another 10 minutes. It's seriously good...if you like warm bread, cheese and butter of course. Pull back the foil and transfer to a dish or just eat from the pan like we do :)