In the bowl of a stand mixer, combine warm water, salt, and sugar. Add yeast and let it rest for 5 minutes until the yeast starts to foam.
With the mixer on medium-low speed, add in the flour and melted butter. Mix thoroughly until a dough forms onto the dough hook of the stand mixer, about 2 minutes.
Wet your hands and remove the dough from the bowl, then rub 2-3 tablespoons of oil all over the stand mixer bowl (or a large new bowl if you prefer). Add the dough back to the oiled bowl. Cover with Saran Wrap and let it rise for 1 hour (you can turn the oven on for 3-5 minutes, make sure to turn it off, then place the bowl in the oven).
Once the dough has risen, remove it from the oven and preheat to 450°F. Add baking soda to a large pot of water and bring it to a rolling boil.
Cut the dough into 8 pieces and roll them out into thin ropes. Cut about 1-inch pieces. Boil batches of the pretzel bites, about 10-15 at a time, for 30 seconds.
Transfer the pretzels to a baking sheet lined with parchment paper, brush with egg wash, and sprinkle with salt. Bake for 12-14 minutes, until golden brown.