Stir well water, honey, maltose, salt in a bowl

In another bowl, dissolve yeast in water

Once yeast is proofed, combine with maltose water then add in 1/2 cup of flour, stir with wooden spoon to a thick mixture

In a separate bowl, place 1/2 cup flour and pour a sum of thick mixture into it, knead. Add another 1/2 cup of flour, knead, and then pour the rest of the thick mixture, and knead more. Pour all of this into the bowl where you had the thick mixture, and knead there, this way you don't waste any.

If its needed, while kneading, you can add the leftover of 1/2 cup, little by little (see how much you will need it)

Divide dough into 6-8 portions and shape into bagel by making a hole in the center of each portion

Let rest for half hour to rise

Dissolve baking soda into the water in a pot, and let simmer

Drop bagels for 1 minute, flip with slotted spoon and simmer for another 1 minute

Place bagels on baking sheet, sprinkle with coarse salt

Bake on preheated 375 F for 20 minutes

Serve immediately.