In a large bowl, combine warm water, sugar, and yeast. Allow this mixture to sit for about 5 minutes until it becomes foamy.

Once it’s frothy, add salt and flour to the yeast mixture. Stir until a cohesive dough forms.

On a lightly floured surface, knead the dough for about 5 to 7 minutes until it becomes smooth and elastic.

Place the kneaded dough into a greased bowl and cover it with a clean cloth. Let it rise in a warm spot for around 1 hour, or until it doubles in size.

Preheat your oven to 425 degrees F (220 degrees C) and line a baking sheet with parchment paper.

Once risen, punch down the dough and divide it into 8 equal pieces. Flatten each piece gently.

Place 1 tablespoon of shredded mozzarella cheese at the center of each piece and fold the dough over it, pinching the edges securely.

In a large pot, bring 8 cups of water to a boil and stir in the baking soda carefully. Drop each pretzel ball into the boiling water for about 30 seconds.

Using a slotted spoon, remove the pretzels and place them on the prepared baking sheet. Brush with the beaten egg and sprinkle with coarse salt.

Bake the pretzels in the preheated oven for 12 to 15 minutes or until golden brown.

Allow them to cool slightly before serving, and enjoy!