The initial close-up of the onion and the subsequent demonstration of knife skills.

The video opens with a close-up of an onion on a dark, textured surface. Various ingredients like carrots, garlic, and a pepper mill are visible in the background. The scene transitions to show the onion being peeled and then sliced thinly (emincé). Next, the onion is chopped into smaller pieces (ciseler). The video then shows a chef's knife on a cutting board with a whole peeled onion. Hands are shown expertly chopping the onion into fine dice. The final scenes show chefs in uniform in a professional kitchen, with text overlay indicating "TÚ VAS PARA CHEF" and "DESCUBRE NUESTROS CURSOS DE COCINA". The ad concludes with the Le Cordon Bleu logo and "MADRID".