For the baguette, put flour in a bowl and mix well with salt and dry yeast.
Gradually add lukewarm water and knead the dough until it comes away from the edge of the bowl.
Place the dough diagonally on a baking sheet lined with baking paper and shape into a long, narrow baguette.
Cover loosely with a clean kitchen towel and let rise in a warm place until doubled in volume, about 1 hour.
Slightly score baguette lengthwise with a knife. Brush with water and place on middle rack in cold oven.
Fill a large roasting pan halfway with boiling water and place in the bottom of the oven.
Heat oven to 200°C and bake baguette for about 40 minutes, until lightly golden brown.
Remove and let the baguette cool on a wire rack.