1. In a large bowl, mix warm water, yeast, and sugar. Let sit for 5 minutes until foamy.

2. Add the sourdough discard, flour, salt, and melted butter. Mix until a soft dough forms.

3. Knead the dough for 6–8 minutes until smooth and elastic.

4. Place the dough in a greased bowl, cover, and let rise for about 1 hour, or until doubled in size.

5. Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper.

6. Bring 6 cups of water and the baking soda to a boil in a large pot.

7. Punch down the dough and divide into 6 portions. Roll each into a rope about 12 inches long. Cut each rope into 1-inch pieces.

8. Carefully drop a handful of pretzel bites into the boiling water for 30 seconds. Remove with a slotted spoon and place on the prepared baking sheet.

9. Brush each bite with the egg wash and sprinkle with coarse salt.

10. Bake for 12–15 minutes, or until golden brown.

11. Optional: brush with melted butter for extra flavor. Serve warm with cheese sauce or mustard.