1. In a small bowl, mix yeast, sugar and warm water together and let stand 3 minutes.

2. Mix 2 cups of flour with the salt in a large bowl; then add the yeast mixture. Stir until combined and slowly mix in the rest of the flour.

3. Knead dough on a floured surface for 5 minutes, adding additional flour if necessary. Dough should be fairly smooth and somewhat firm. Place dough in a greased bowl, cover and let rise until double.

4. Punch dough down (if making cinnamon raisin bagels, add the cinnamon and raisins now — knead just enough to swirl the cinnamon through the dough). Divide and shape into 10 balls. Allow to rest for 5 minutes.

5. Bring 2 quarts of water to boil. Make a hole in each ball of dough and pull open about 2 inches, making a bagel shape. Place the shaped dough onto a cookie sheet and cover for 10 minutes.

6. Preheat oven to 350 degrees. Drop 2 or 3 bagels at a time into the boiling water for about 45 seconds, turning each once.

7. Drain cooked bagels on a wire rack. Mix egg white and water; brush tops with egg white mixture and top with optional toppings, if using. Place bagels on greased baking sheets.

8. Bake at 350 degrees for 35 minutes, turning once half-way through baking. (If making plain bagels, you can flip the bagels; otherwise, just rotate.) Bagels will be lightly browned and shiny.