In a stand mixer bowl (or large mixing bowl), whisk together the warm water, yeast, and sugar. Let sit for 5 minutes until foamy. Add the sourdough discard, salt, melted butter, and 4 cups of flour. Mix on low for 2 minute. The dough should be soft and slightly tacky. If the dough feels very sticky add another tablespoon of flour. Mix for 1 minute. If the dough feels overly dry, add 1 teaspoon of water. Mix for 1 minute. Avoid adding too much flour.
Knead the dough in the mixer for 5 full minutes, or turn out onto a floured surface and knead by hand for 5 minutes. Add only a little flour as needed to prevent sticking. The dough is ready when it slowly springs back when poked. Cover and let rest in the bowl in a warm place for 15–30 minutes.
Preheat oven to 400°F (204°C). Line two baking sheets with silicone mats or grease parchment paper well with butter or nonstick spray to prevent sticking.
Cut the dough into 6 equal pieces. Roll each into a 20-inch rope on a lightly floured surface. Cut ropes into 1.5–2-inch bites using a bench scraper, sharp knife, or pizza cutter.
Bring 8 cups of water and ½ cup baking soda to a boil. Working in batches, boil 5–10 bites at a time for 10–15 seconds only. Remove with a slotted spoon and shake off excess water. Place bites on prepared baking sheet. Sprinkle with coarse salt if using.
Bake for about 15 minutes, or until golden brown. Rotate your baking sheets have way through.
Serve warm! Toss in melted butter, cinnamon sugar, or your favorite seasoning, using your favorite dips.
Store leftovers in an airtight container at room temperature for up to 2 days. Reheat in the oven or microwave to revive softness.