Step 1

Prepare a 9x13 baking dish by spraying with non-stick spray or rubbing with butter. Set aside.

Step 2

In a large pan, melt the butter and marshmallows over low heat until melted, stirring constantly. Be careful not to overheat, as the mixture will burn easily.

Step 3

Remove from heat, and add pumpkin puree, pumpkin pie spice, and vanilla. Stir to combine.

Step 4

Add cereal and stir well to combine. Make sure to coat all the cereal in the marshmallow mixture.

Step 5

Transfer to the prepared baking dish and gently press down with a rubber spatula to flatten and evenly distribute into the dish.

Step 6

Cool for 30 minutes to an hour or until set. Slice into 12 squares.

Step 7

Melt white candy melts in the microwave (according to package directions) and then drizzle over the top of the cooled squares.