Prepare the dough: Mix water, yeast, brown sugar, flour, and salt in a mixer for 5-6 minutes.
Let the dough rise: Cover the dough with cling film and let it rise until it doubles in size, about an hour.
Shape the bagels: Divide the dough into 10 pieces, shape into balls, and then form bagels by making a hole in the center.
Boil the bagels: Boil each bagel in water mixed with baking soda for 30 seconds on each side.
Bake the bagels: Place boiled bagels on a baking sheet, brush with egg white, sprinkle with seeds, and bake at 180°C for 20-25 minutes.
Serve: Slice bagels and fill with cream cheese, smoked salmon, arugula, and season with pepper and balsamic cream.