In a mixing bowl, combine the pumpkin puree, softened cream cheese, vanilla extract, cinnamon, nutmeg, ginger, and cloves. Mix until smooth and well-combined.
Gradually fold in the graham cracker crumbs until the mixture is thick and dough-like. You should be able to form it into balls without it being too sticky.
Refrigerate the mixture for about 30 minutes, or until firm enough to handle.
Once firm, scoop tablespoon-sized portions of the mixture and roll them into balls. Place the balls on a parchment-lined tray.
Use your finger to make a small indentation in the center of each truffle. Fill the indentation with a teaspoon of caramel sauce and then gently pinch the dough around it to enclose the caramel.
Freeze the filled truffles for at least 15 minutes to firm up.
In a microwave-safe bowl, melt the semi-sweet chocolate chips in 30-second intervals, stirring in between until smooth.
Dip each truffle in the melted chocolate, allowing excess to drip off, and return them to the parchment-lined tray.
While the chocolate is still warm, sprinkle a tiny pinch of sea salt on top of each truffle.
Let the chocolate set at room temperature or refrigerate until hard.
Notes
Arrange the truffles in a festive box or on a decorative plate, and drizzle some additional caramel sauce over the top for an elegant finish.