Step 1

Line an 8x8-inch square baking pan with parchment paper. Set aside.

Step 2

Add the chocolate to a large microwave-safe bowl, and heat in 30 second intervals, stirring after each one, until melted and smooth.

Step 3

Add the Rice Krispies, and fold in until completely coated in chocolate.

Step 4

Pour into the prepared pan and spread out evenly. Freeze until completely set - about 10 - 20 minutes.

Step 5

Place the caramels and milk in a microwave-safe bowl, and heat in 30 second intervals, stirring after each one, until melted and smooth.

Step 6

Allow to cool slightly - about 10 minutes.

Step 7

Pour the caramel mixture over the crunch layer and spread out evenly. Freeze whilst preparing the chocolate layer.

Step 8

Add the chocolate and butter to a microwave-safe bowl and heat in 30 second intervals, stirring after each one, until melted and smooth.

Step 9

Pour over the caramel layer and spread out evenly.

Step 10

Freeze until set - about 30 minutes. Cut into bars, serve and enjoy!