Begin by pouring the heavy cream into a small saucepan and place it over medium heat. Warm the cream until it is just about to reach a simmer—watch carefully to ensure it does not boil.
Once simmering, remove the saucepan from the heat and immediately add the chopped white chocolate. Stir continuously until the chocolate has completely melted and the mixture is silky and smooth.
Gently fold in the fresh raspberries, vanilla extract, and crushed biscuits into the chocolate mixture. Be careful not to break the raspberries too much; you want to maintain some texture.
Allow the mixture to cool at room temperature for approximately 30 minutes. After this, cover the mixture with plastic wrap and refrigerate it for about 1 hour, or until it becomes firm enough to scoop.
After the mixture has chilled and set, use a melon baller or your hands to scoop out small portions. Roll them gently between your palms to form beautiful truffle balls, about the size of a walnut.
Take each truffle and softly roll it in either cocoa powder or desiccated coconut. Ensure each piece is fully coated for that added flavor and visual appeal.
Arrange the finished truffles on a parchment-lined baking sheet. Once all are rolled, return them to the refrigerator for an additional 30 minutes to set properly.
Just before serving, place a fresh raspberry on top of each truffle as a delightful garnish that adds a pop of color and burst of flavor.
Notes
Feel free to dust a little extra cocoa powder or coconut on the serving platter for added flair.