Ideal bread for panini
I like using a sourdough loaf or rye bread.
here is one of my favorite panini sandwiches:
2 slices of hearty rye bread
dill pickle slices
slices of aged cheddar cheese
slather the mustard on one or two slices of the bread, throw in as much cheese as you want and as many dill pickle slices as you want. butter each side of the sandwich liberally and throw it into your press.
I have the cuisinart griddler and my boyfriend and I use it at least twice a week for panini. We love the rye bread sandwich and we all like using the sourdough for a mozarella, basil, tomato sandwich.
If there is a trader joe's near you, I suggest trying out their tuscan pane bread. It's not that bad when you use it in a panini grill and it's already pre sliced
ciabatta is also great, you just have to press down a little harder because the outside is harder (more crust)