Step 1

Measure all your ingredients before you start.

Step 2

Spray a 9x-13-inch baking pan with non-stick spray or line with waxed paper, parchment paper, or aluminum foil (sprayed with non-stick spray.)

Step 3

In a large heavy bottom pot (You'll need a soup pot or large Dutch oven) over medium-low heat, melt the butter.

Step 4

Add the marshmallows and stir until they are almost completely melted. I like to leave some not completely melted. Stir in the vanilla.

Step 5

Add the cereal and potato chips to the pot and stir well with a large spatula until the marshmallow and butter mixture covers all the cereal and chips.

Step 6

Immediately pour and press into your prepared pan. Allow to cool before cutting.

Step 7

Store in an airtight container on the countertop.