Line a large baking sheet with parchment paper. Divided dough into two. Shape each portion into a long flat log approximately 2 1/2"x 9 1/2"x1" high. Whisk egg white with a tbsp of water and brush over each log. Bake for 30 minutes, remove from oven and allow to cool for 10-15 minutes. Reduce oven temperature to 300℉. Cut each log into 3/4" slices and lay each piece flat on the baking sheet. Bake for 10 minutes, turn over each piece and bake for an additional 10 minutes.