PRETZEL BONES

1 (1/4-oz.) pkg. active dry yeast1 ½ c. warm water (110-115 degrees01 T. sugar2 t. salt4 ¼-4 ½ c. flour8 c. water½ c. baking soda1 large egg, lightly beatenKosher salt, sesame seeds, poppy seeds or grated Parmesan cheese In large…