What is the name of french desert that a light fluffy choco late pudding with whipped cream?

There isn't a specific French dessert with that exact description. However, it sounds very similar to a Crème au Chocolat (Chocolate Cream).

Here's why:

* Light and fluffy: Crème au Chocolat is typically made with a custard base, which creates a smooth, silky texture.

* Chocolate pudding: The main ingredient is chocolate, making it a chocolate pudding.

* Whipped cream: Whipped cream is often served on top of Crème au Chocolat for added richness and texture.

While Crème au Chocolat might not be exactly what you're looking for, it's a classic French dessert that shares many similarities with the description you provided. It's possible there are other variations of chocolate desserts in French cuisine that fit the description more closely, but Crème au Chocolat is a strong candidate.