Once the dough has risen, gently punch it down and divide it into 8 equal pieces (or more, if you prefer smaller pretzels).
Roll each piece into a long rope (about 18-24 inches long), and allow to rest. I find this helps with shaping so that the dough doesn't retract back.
To shape the pretzels, make a "U" shape with the rope, then twist the ends over the top of the "U" to form the classic pretzel shape.
Place the shaped pretzels on a parchment-lined baking sheet.
Prepare the baking soda bath:
Preheat your oven to 425°F (220°C).
In a large pot, bring the water to a boil, then add the baking soda carefully. Stir until the baking soda is dissolved.
Carefully dip each pretzel, one at a time, into the boiling baking soda bath for about 30 seconds. This helps create the chewy, crispy crust.
Place the dipped pretzels back on the prepared baking sheet.