Turn pizza dough out onto a lightly floured surface and knead until smooth (2-3 minutes). Place in a lightly greased bowl, turning to grease top.
Cover dough with plastic wrap and let rise in a warm place (85%), free from drafts, 1 hour or until doubled in bulk.
Divide dough into 8 equal pieces. Roll each piece into a 16-inch-long rope on lightly floured surface keeping unused dough covered with a damp towel.
Form each rope into a U-shape on a parchment paper-lined baking sheet.
Fold or twist each end down diagonally and tuck under dough, forming pretzel shape.
Cover with a damp towel; let stand 15 minutes.
Fill a 3 ½ quart saucepan with water and stir in baking soda. Bring to a boil over medium-high heat. Reduce heat to medium-low and simmer.
Gently lower 2 pretzels into simmering water mixture. Cook 10 seconds on each side. Transfer to a lightly greased wire rack.
Repeat procedure with remaining pretzels.
Transfer pretzels to parchment paper-lined baking sheet.
Brush generously with melted butter and sprinkle with sesame seeds and sea or Himalayan salt, if desired. Bake for 12-15 minutes or until golden brown and thoroughly cooked.