In a large bowl, combine warm water, yeast, and sugar. Let stand for 5 minutes until foamy.

Add salt and melted butter to the yeast mixture. Gradually add flour, mixing until a dough forms.

Knead the dough on a lightly floured surface for 5-7 minutes, or until smooth and elastic.

Place the dough in a lightly oiled bowl, turning to coat. Cover and let rise in a warm place for 1 hour, or until doubled in size.

Preheat oven to 450°F (232°C) and line a baking sheet with parchment paper.

Punch down the dough and divide it into 8 equal pieces.

Roll each piece into a long rope, about 24 inches. Shape each rope into a pretzel.

In a large pot, bring water and baking soda to a boil. Carefully dip each pretzel into the boiling water for 30 seconds.

Place the pretzels on the prepared baking sheet. Brush with egg wash and sprinkle with coarse salt.

Bake for 12-15 minutes, or until golden brown.

Let cool slightly before serving.