(If you're using instant yeast, skip this step, simply combining all of the ingredients at once.) Add the white wheat flour, malt, salt, and enough unbleached flour to make a soft (but not sticky) dough.
Knead well, place in a bowl, and let rise till doubled.
Divide the dough into 16 pieces.
Roll each piece into a log, and shape the logs into pretzels.
In a large pot, boil together 6 cups of water and 2 tablespoons baking soda.
Put 4 pretzels at a time into the boiling water, and cook for 1 minute.
Transfer boiled pretzels to a lightly greased baking sheet.
When all the pretzels have been cooked, paint them with an egg glaze (1 egg mixed with 1 tablespoon water) and sprinkle with salt or seeds (if desired), then bake in a preheated 450°F oven for 12 to 15 minutes, or until the pretzels are well-browned.