Combine water, brown sugar, discard, and yeast in a large bowl. Let it rest for 5-10 minutes until the yeast starts to bubble.
Add flour, salt, and melted butter. Mix until combined. Knead the dough for 5 minutes. Shape into a ball and let rest for 1 hour or until doubled in size.
Divide the dough into 8 equal pieces. Roll each piece into a rope, then cut into desired bite-size pieces. Lightly roll pieces into a ball
Preheat oven to 450°F. Bring 2 quarts of water to a boil and add baking soda. Boil Pretzels for 30 seconds and place on a baking sheet lined with parchment paper.
Top with desired toppings and bake for 15 minutes or until golden brown (optional: brush each dough ball with an egg wash before pretzel salt) Enjoy!