Preheat oven to 425° F.
Line two baking sheets with parchment paper.
Divide the dough into 8 equal pieces.
Roll each piece into a long rope shape that is approximately about 20-22 inches long.
Next, create a U shape with the dough
With the dough on a floured surface, pick up each end with each hand and and crisscross them and turn the ends down toward the bottom of the U to create a basic pretzel shape.
Take the ends and crisscross them again to create the swirl in the middle.
Gently press the ends into place to secure the pretzel shape.
Repeat with the rest of the dough
Place approx. 10 cups of water and ½ cup baking soda in a large pot and bring it to a boil.
Place the lined baking sheets next to the stove.
Working in batches, gently place one pretzel into the boiling water and cook for about 30 seconds.
Then gently lift the pretzel out of the water with a slotted spatula and place it on the baking sheet.
Repeat with the remainder of the pretzels arranging them about 2 inches apart on the baking sheets.
In a separate small bowl, whisk together the egg and 1 teaspoon water.
Brush the pretzels evenly with the egg mixture with a thin layer.
Sprinkle with coarse salt if desired.
Bake for 15 minutes or until pretzels are golden brown.