01 -
Whisk the butter and corn syrup together. Toss in the vanilla, sugar, salt, and milk next. Divide the blend and tint one part yellow.
02 -
Use parchment paper to line a 9-inch dish. Spread half the melted chocolate, layer the white filling, then the yellow one, and finish with the last of the chocolate.
03 -
Cool in the fridge for 30 minutes till set. Slice into squares with a warm knife.