Dissolve the active dry yeast and sugar in warm water.
Let it sit for about 5 minutes until it's foamy.
Add the flour and salt to the yeast mixture.
Stir until a dough forms.
Knead the dough on a floured surface for 5 minutes.
Grease a large bowl with cooking spray.
Place the dough in the bowl, cover it, and let it rise in a warm spot for about an hour.
Preheat your oven to 450°F.
Divide the dough into 8 pieces.
Roll each into a long rope and twist into a pretzel shape.
Boil water and baking soda in a large pan.
Dip each pretzel in the soda-water mixture for about 30 seconds.
Place them on a prepared baking sheet.
Brush the pretzels with melted butter.
Sprinkle with salt.
Bake for 10-12 minutes or until golden brown.