Follow these easy steps to create your Mango Mousse Cake:

1. Prepare the Mango Puree: Blend the diced mangoes in a blender until smooth. Strain through a sieve if you prefer a smoother consistency.
2. Dissolve the Gelatin: In a small bowl, sprinkle the gelatin over the cold water and let it sit for about 5 minutes until it blooms. Heat gently until completely dissolved.
3. Mix Mango and Gelatin: Combine the mango puree with the dissolved gelatin and lemon juice in a large bowl. Stir well to mix, then set aside.
4. Whip the Cream: In another bowl, whip the heavy cream until soft peaks form. Gradually add granulated sugar while continuing to whip until stiff peaks form.
5. Blend in Cream Cheese: In a separate bowl, beat the softened cream cheese and vanilla extract until smooth and creamy.
6. Fold in the Mixtures: Carefully fold the whipped cream into the mango mixture. Then, fold the smooth cream cheese into the combined mixture until well blended.
7. Set in a Springform Pan: Pour the mixture into a prepared springform pan, smoothing the top with a spatula. Refrigerate for about 1-1.5 hours or until firmly set.
8. Serve: Once set, carefully remove the sides of the springform pan. Garnish with mint leaves if desired.

This straightforward approach will guide you through each step of making the Mango Mousse Cake without any hassle. Enjoy the process, and savor each moment as you create this delightful cake.