Prepare the dough: Pour the water, yeast, bread flour, and sugar into the bowl of a stand mixer. Mix on low speed for 6 minutes, then increase to medium speed for 8 minutes until smooth and elastic. (the dough should be stretchy at this stage.)
1st Rise: Place the dough on a lightly floured surface or baking sheet. Dust the dough with flour and shape it into a ball. Cover with kitchen towel or plastic wrap, and let the dough rise at room temperature about 30 minutes until slightly puffed.
Divide the dough: Divide the dough into 4 equal pieces (they don’t need to be perfect) Use a bench scraper if you have one, a sharp knife also works. Shape each into a ball, then place on a floured surface or baking sheet.
2nd Rise: Cover the dough balls with a kitchen towel or plastic wrap. Let them rest slightly for about 15 minutes.
Shape the baguettes: Gently roll each dough ball into a baguette shape, about 13 inches long (35cm) (See the picture and shaping section above). Place them on a baking sheet lined with parchment paper.
3nd rise: Cover the shaped baguettes with a kitchen towel or plastic wrap. Allow them to rise for 30-45 minutes, or until puffy.
Create the steam: After leaving the dough rise for about 15 minutes. Place a baking sheet filled with 3 cups of water on the bottom of the oven. Preheat the oven to 480°F (250°C).
Score the baguette with a sharp knife or razor blade. Sprinkle with a pinch of flour (optional), and spray with water.
Bake the baguette: Bake at 250°C (480°F) for 15 minutes or until golden brown on top. (it's best to bake in the upper of the oven to ensure even browning on top and bottom.)