The primary ingredient of a traditional French baguette is flour, specifically artisan bread flour, which gives it the desired texture and flavor. The baguette is known for its crispy crust and soft, airy interior. Along with flour, water, yeast, and salt are key ingredients involved in the dough-making process. The balance of these components, combined with a specific fermentation and baking technique, contributes to the baguette's characteristic taste and structure, making it an iconic symbol of French culture.