Step 1: In a large bowl or stand mixer, combine warm water and 1 tablespoon of sugar. Sprinkle yeast on top and let sit for 5 minutes until foamy.
Step 2: Add 2 tablespoons of melted butter, salt, and flour. Mix with a dough hook until the dough is smooth and pulls away from the sides of the bowl.
Step 3: Place dough in a greased bowl, cover with a damp cloth, and let rise in a warm place for about 1 hour or until doubled in size.
Step 4: Preheat oven to 450°F and line two baking sheets with parchment paper. Bring 10 cups of water and the baking soda to a rolling boil in a large pot.
Step 5: Divide dough into 8 equal pieces. Roll each into a 24-inch rope and twist into a pretzel shape.
Step 6: Carefully drop each pretzel into the boiling baking soda water for 30 seconds. Remove with a slotted spoon and place on the prepared baking sheet.
Step 7: Bake for 10-12 minutes until dark golden brown. Meanwhile, mix the 1/2 cup sugar and cinnamon in a shallow bowl.
Step 8: While still warm, brush each pretzel with the remaining melted butter and dip into the cinnamon-sugar mixture to coat thoroughly.