Line an 8x8 in baking dish with foil, and spray with non-stick spray.

In a large microwave safe bowl melt butter and marshmallows together (heat for 45 seconds at a time, stirring in between). Once mostly melted, add Biscoff spread. Heat for 30 seconds, and stir until smooth.

Add Rice Krispies, and stir to evenly coat. Press firmly into the prepared pan.

To prepare the topping microwave chocolate chips and biscoff spread for 1 minute, stir and repeat in 30 second intervals until smooth.

Pour over Rice Krispies.

Let the chocolate completely set up, before cutting into squares.

Store in an air tight container for up to 5 days