Prepare the Long Emile Henry Bread Baker by lightly coating with butter and flour. (The dough can also be divided and baked in two 4 1/2 x 8 1/2-inch loaf pans).
On a well-floured surface, roll the dough, using your hands and a rolling pin, to a 1/4-inch-thick rectangle. Spread the grated cheese and jalapeños over the surface of the dough.
Roll the dough into a log, starting at the short end.
Using a Bread Knife or Kitchen Scissors, cut the log into 4 equal pieces.
Set the pieces, cut side up, in the prepared bread baker. (If you are baking in smaller loaf pans, place two pieces into each of the prepared pans.)
Cover the bread baker with the lid (or plastic wrap) and let rest for 1 1/2 to 2 hours - until you press the dough and it leaves a slight indent.**
Preheat the oven to 450°F and place the rack in the middle of the oven.
Bake for about 50 minutes with the lid on (about 40 minutes for the smaller loaf pans) or reads 205°F on an instant read thermometer. Remove the lid and bake for an additional 10 minutes. The lid may stick to the cheese a tiny bit, but with a gentle shake, it comes loose.
Cool slightly in the pan and then turn the loaf out onto a cooling rack to cool completely before slicing.