Prepare Your Pan: Line an 8×8 inch square baking pan with parchment paper, leaving some overhang for easy removal later.
Melt Chocolate: In a medium saucepan, combine sweetened condensed milk, pumpkin puree, and white chocolate chips over medium-low heat. Stir continuously until the chocolate is melted and the mixture is smooth.
Add Spices: Stir in pumpkin pie spice and salt, mixing until well combined. This is where the pumpkiny goodness really shines through!
Pour into Pan: Transfer the mixture to the prepared baking pan. Use a spatula to spread it evenly, ensuring there are no air pockets.
Chill: Refrigerate the fudge for at least 2-3 hours until set. Be patient; this step is key for texture!
Cut and Serve: Once set, lift the fudge out of the pan using the parchment overhang and cut into squares. Serve chilled and enjoy your delicious treat!