Preheat the oven to the specified temperature.
Grease and flour the cake pan to prevent sticking.
Combine the dry ingredients in a mixing bowl.
Beat the eggs and vanilla extract in another bowl until fluffy.
Gradually mix the wet and dry ingredients until smooth.
Pour the batter into the prepared cake pan.
Bake in the preheated oven until the cake is cooked through.
Allow the cake to cool completely before proceeding.
Bloom the gelatin by sprinkling it over water in a small bowl.
Dissolve the gelatin by gently heating it in a saucepan.
Whip the heavy cream until stiff peaks form.
Fold the gelatin mixture and flavoring gently into the whipped cream until smooth.
Place the cooled cake in a springform pan or cake ring.
Pour the mousse mixture over the cake base, spreading it evenly.
Smooth the top of the mousse layer with a spatula.
Refrigerate the cake for 4-6 hours or overnight to allow the mousse to set.