In a small bowl, mix warm water and yeast; let it sit for about 5 minutes until frothy.

In a large bowl, whisk together flour and salt. Add the yeast mixture and melted butter; stir until a dough forms.

Knead the dough on a floured surface for about 5 minutes until smooth and elastic.

Place the dough in an oiled bowl, cover it with a damp cloth, and let it rise in a warm place for about 1 hour or until doubled in size.

Preheat oven to 425°F. Punch down the risen dough and divide it into small pieces; shape into bite-sized balls.

Boil water with baking soda in a pot. Drop pretzel bites into boiling water for about 30 seconds; remove with a slotted spoon.

Place on a parchment-lined baking sheet, brush with melted butter, and sprinkle with coarse sea salt.

Bake for 10-12 minutes or until golden brown.