Creating this delightful Peach Mousse is simple when you follow these steps:

1. Prepare the Peaches: In a blender, combine the peeled and pitted peaches, sugar, and lemon juice. Blend until smooth and set aside.
2. Dissolve Gelatin: In a small bowl, sprinkle gelatin over the cold water and let it sit for about 5 minutes to bloom.
3. Heat Gelatin Mixture: Once bloomed, microwave the gelatin mixture for about 10-15 seconds until dissolved. Do not boil.
4. Combine Mixtures: Gently fold the dissolved gelatin into the peach puree. Stir in the vanilla extract.
5. Whip the Cream: In a mixing bowl, whip the heavy cream to soft peaks using an electric mixer.
6. Fold Together: Carefully fold the whipped cream into the peach mixture until combined. Do not overmix; you want to keep the mousse light and airy.
7. Chill the Mousse: Spoon the mixture into serving bowls or glasses and refrigerate for at least 1 to 2 hours to set.
8. Serve: Once set, you can garnish with additional whipped cream or peach slices, if desired.

With these steps, you will have successfully crafted an incredible Peach Mousse that is both delicious and visually appealing.