Prepare the Gelatin:
In a small bowl, sprinkle the gelatin powder over the warm water. Stir to dissolve and set aside for 5 minutes to bloom. This step helps activate the gelatin, making the mousse firm and airy.
Make the Passionfruit Mixture:
In a medium saucepan, combine the passionfruit pulp, sweetened condensed milk, and sugar (if using). Heat the mixture over medium-low heat while stirring, until it’s warmed through but not boiling. Once heated, remove from the heat.
Incorporate Gelatin into the Mixture:
Add the bloomed gelatin mixture to the warm passionfruit mixture and stir until the gelatin has fully dissolved. Set aside to cool to room temperature.
Whip the Cream:
In a separate bowl, use an electric mixer to whip the heavy cream until stiff peaks form. Be careful not to over-whip; you want the cream to be thick but still soft and airy.
Combine the Mixtures:
Once the passionfruit mixture has cooled to room temperature, gently fold it into the whipped cream. Use a spatula to combine the two mixtures until smooth and well incorporated. Be gentle to keep the mousse light and airy.
Chill the Mousse:
Spoon the mousse into serving glasses or bowls and refrigerate for at least 4 hours, or until the mousse has set and become firm.
Serve and Enjoy:
Garnish with additional passionfruit pulp or fresh fruit if desired. Serve chilled and enjoy the refreshing taste of this tropical dessert!