ब्राउनी केक विथ चॉकलेट मूस

Name: Brownie Cake with Chocolate Mousse
Ingredients: 4 eggs; 1 cup sugar; 1 cup dark chocolate, melted; 1/2 cup flour; For the mousse:; 1 1/3 cups dark chocolate, melted; 4 eggs, divided; 1/2 cup heavy cream; For the assembly:; 8 ounces dulce de leche; 1/4 cup grated cocoa powder