In a mixing bowl, combine gluten-free flour, sugar, salt, and yeast.

Gradually add warm water and mix until a dough forms.

Knead the dough for about 5 minutes until smooth.

Divide the dough into equal portions and roll each into a rope.

Shape each rope into a pretzel shape and place on a baking sheet lined with parchment paper.

Preheat the oven to 425°F (220°C).

Boil water in a saucepan and add baking soda.

Dip each pretzel in the boiling water for 30 seconds, then place back on the baking sheet.

Sprinkle with coarse sea salt and bake for 15 minutes until golden brown.