01 - Combine warm water, sugar, and yeast in a large bowl. Let stand for 5 minutes until foamy.
02 - Add melted butter and salt to yeast mixture. Gradually stir in flour until dough begins to form.
03 - Knead dough on a lightly floured surface for 7 to 8 minutes until smooth and elastic.
04 - Place dough in a lightly oiled bowl. Cover and let rise in a warm place until doubled in size, about 1 hour.
05 - Preheat oven to 450°F. Line two baking sheets with parchment paper.
06 - Bring water and baking soda to a boil in a large pot.
07 - Punch down dough and divide into 8 equal portions. Roll each into a 20-inch rope and form into pretzel shapes.
08 - Dip each pretzel individually into boiling baking soda bath for 30 seconds. Remove with a slotted spatula and place on prepared sheets.
09 - Brush each pretzel with egg wash and sprinkle with coarse sea salt.
10 - Bake pretzels for 12 to 15 minutes until deep golden brown. Allow to cool slightly before serving.