Line an 8x8 baking dish with foil and spray with nonstick spray.
In a medium saucepan, heat semi sweet chips and 1/2 can of sweetened condensed milk over low heat. Stir constantly, until melted and smooth.
Remove from the heat and stir in vanilla.
Pour mixture into the prepared baking dish and spread it out to cover the bottom of the pan.
Press 1/2 of candy corn into mixture then refrigerate for 15 minutes.
In a medium saucepan, heat orange candy chips and 1/2 can of sweetened condensed milk over low heat. Stir constantly, until melted and smooth.
Remove from heat and stir in vanilla.
Pour mixture into prepared baking dish and spread evenly over the previous layer.
Press the remainder of the candy corn into top layer making sure to leave some visible on the surface.
Refrigerate to set.