Combine water, sugar, yeast, and butter in a large bowl. Let sit for 5 minutes.

Add the salt and 4 1/2 cups flour. Mix until combined. knead using the stand mixer for 3-4 minutes or by hand for 8-10 minutes. add in more flour a little at a time if needed.

Oil a bowl, add the dough and turn to coat with the oil. Cover and let rise until doubled, about 1 hour.

Bring water to a boil and carefully add the baking soda. It will boil over, so add slowly and be careful!

Remove the dough from the bowl and place on a flat surface. Divide the dough into 8 equal pieces, about 4 1/2 ounces each. Roll each piece into a long rope measuring 22 inches and shape. Cut the dough into one inch pieces to make the pretzel bites.

Boil the pretzel bites in the water solution in batches. Remove with a large slotted spoon. Place pretzel bites on a baking sheet that has been sprayed with cooking spray. Make sure they are not touching.

Brush the tops with the egg wash and season liberally with the salt. Place bake at 425 F for 15 to 18 minutes until golden brown.

Melt butter over medium heat in a medium saucepan.

Add flour. Whisk to combine until smooth and continue cooking for about 1 minute.

Continue to whisk and slowly add in the beer and milk.

Add garlic, mustard and Worcestershire sauce.

Stir constantly for about 5 - 10 minutes, until thickened. The sauce should coat the back of a wooden spoon.

Remove from heat and immediately stir in both cheeses and hot sauce.

Salt and pepper to taste.