Warm the Cream: In a small saucepan, heat the heavy cream over medium-low heat until it starts to simmer. Avoid boiling.
Melt the Chocolate: Add the white chocolate chips to a heatproof bowl, ensuring it’s suitable for gentle heating. Pour the hot cream over the chocolate, letting it sit for 1–2 minutes to soften.
Mix Until Smooth: Gently stir the chocolate and cream mixture until fully melted and smooth.
Incorporate Pumpkin: Add the pumpkin puree, pumpkin spice, vanilla extract, and salt to the bowl. Stir until well combined.
Cool and Use: Allow the ganache to cool slightly before using it as a topping or filling. For a thicker consistency, refrigerate it for 30 minutes.