Activate the yeast: In a large bowl, combine warm water, sugar, and yeast. Let sit for 5–10 minutes until foamy.
Mix the dough: Add gluten free flour, salt, and melted butter to the yeast mixture. Stir until a shaggy dough forms.
Knead and rest: Knead the dough lightly, then cover the bowl and let it rest for 30–45 minutes.
Preheat and prep: Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper. Prepare the baking soda bath in a saucepan and bring to a low simmer.
Shape pretzels: Divide dough into 6–8 portions. Roll each into a rope and shape into a traditional pretzel twist.
Baking soda bath: Carefully dip each pretzel into the simmering baking soda bath for 20–30 seconds. Remove with a slotted spoon and place on the baking sheet.
Brush and bake: Brush pretzels with egg wash or dairy-free milk and sprinkle with coarse salt. Bake for 12–15 minutes or until golden brown.
Cool and enjoy: Let cool slightly, then enjoy warm or at room temp with your favorite dip!