Set your Instant Pot to the 'Sauté' function.
Add the fresh raspberries, ¼ cup of water, and Swerve to the inner pot.
Stir to combine and cook for 10-12 minutes, stirring frequently, until the berries have broken down and the mixture has thickened into a beautiful, jammy sauce.
Pour in the almond milk and vanilla extract, stirring to incorporate.
Continue to cook on the 'Sauté' setting for another 3-4 minutes, allowing the flavors to meld together.
Turn off the heat by pressing the 'Cancel' button. Gently stir in the heavy cream and sugar-free whipped cream until the mixture is smooth and uniform.
Season with the salt and ginger powder, giving it one last stir.
Carefully transfer the warm mousse into two serving bowls or glasses. Allow them to cool slightly before placing them in the refrigerator to chill for at least 2 hours, or until fully set.
Serve cold and enjoy!
Garnish with a dollop of fresh whipped cream, a few whole raspberries, and a sprig of mint for a restaurant-quality presentation.