In the bowl of a stand mixer whisk together water, yeast, and molasses. Attach dough hook attachment. With in the mixer running on low, add in bread flour and salt. Continue to mix until dough comes together. Once dough has formed, increase to medium speed and knead for 3 minutes. Let dough rest for 5 minutes and then knead on medium speed for another 3 minutes. At this point, the dough should be smooth, yet tough.
Transfer dough to a large greased bowl. Cover with plastic wrap and let rise at room temperature for 1 hour.
Divide dough into 8 equal pieces. Form each piece into a ball. Poke a hole through the center each ball using your thumb. Use both thumbs to gently stretch the dough until center hole is about 2-inches in diameter.
Place formed dough on a greased parchment lined sheet pan. Lightly mist bagels with cooking spray and cover with plastic wrap. Keep chilled in the fridge overnight (12-16 hours is ideal).
POACHING
Remove bagels from fridge and let it at room temperature for 10 minutes. Preheat oven to 450 degrees F.
Meanwhile, in a large pot, bring water to a boil. Make sure the water is at least 3-inches deep. Once boiling, reduce to a simmer and add salt and baking soda.
Gently place bagels into simmering poaching liquid using a slotted spoon. Add as many bagels as can comfortably fit in the pot. Let bagels cook on each side for one minute. Remove bagels and place domed side up on a lightly greased parchment lined baking sheet.
TOPPINGS and BAKING
Whisk together egg white and water until frothy. Brush egg whites over bagels and sprinkle desired toppings on top.
Bake for 10 minutes. Rotate baking sheets and bake for another 8 to 10 minutes until bagels are golden brown in color. Cool on wire rack before serving.
Notes
If using active dry yeast, combine yeast with warm water. Let sit for 5 to 7 minutes until mixture is fragrant and bubbly. Proceed with regular instructions.
When rotating baking sheet, check if bottoms of bagels are browning too fast. If so, simply place another baking sheet under current baking sheet and continue baking.