In a large bowl combine 1 1/4 c. flour, 1 1/2 c. warm water, 2Tbsp. active dry yeast, and 3Tbsp. sugar.
Mix on low speed. Scrape the sides of the bowl. Mix on high speed for 1-2 minutes.
Add 1 Tbsp. salt and 3 more cups of flour.
Mix until a stiff dough is achieved. Use the dough hook on your mixer and knead for 2 minutes (or knead the dough by hand on a floured surface until smooth and elastic).
Cover and let rise for 15 minutes.
Divide into 12 sections. Roll each section into a ball.
Press thumb through the center of each ball and gently pull in all directions until a uniform ring has formed.
Place on a lightly floured surface, cover, and let rest for 20 minutes.
While dough rests, pour 10 cups of water into a stock pot. Add 1/2 cup baking soda, stir, then bring the water to a boil.
Reduce heat to med-low.
Preheat oven to 375 degrees.
Boil 3-4 bagels at a time for 30-60 seconds on each side. Transfer each bagel to a cooling rack to drain for 30-45 seconds then transfer to a baking sheet that has been lightly sprayed with non stick cooking spray.
Repeat until all 12 bagels have been boiled.
Use a fork to beat the egg and tablespoon of water together to create an egg wash. Brush each bagel with an egg wash (1 egg + 1 Tbsp. water) then sprinkle with kosher salt.
Bake for 25 minutes, rotating the pan half way through the baking process. Bagels will be dark, but they will still be soft. Trust me!
Video
Notes
Store baked pretzels in an airtight container or bag. Bagels freeze well.