Line a 9×9″ square tin with parchment paper and leave to the side.
In a large bowl, add in the chocolate, golden syrup, and butter
Melt on a low heat over a double boiler, or in the microwave on low, in short bursts until fully melted
Alternatively, add the syrup and butter to a pan and melt. Add in the chocolate (off heat) and stir until combined and the chocolate is melted.
Once its melted and combined wait 5 minutes for the chocolate mix to cool a little.
Add in the chopped biscuits, mini marshmallows, and Aero Bubbles and quickly fold together – pour into the tin and spread so its even and refrigerate until set.
Melt the white chocolate on short bursts in a microwave, or over a double boiler until melted.
Add in a bit of green food colouring to get a ‘minty’ colour and drizzle it all over the traybake.
Sprinkle on the crushed mint aero pieces so they stick and refrigerate again until set.
Chop up the pieces into either 4×4 for 16 larger pieces, or 5×5 for 25 smaller pieces. Enjoy!
Notes
I really would recommend using just milk or dark chocolate for the base of this recipe as it melts better than white chocolate. The white chocolate might mix/split when mixing it with the golden syrup or butter, which I have had happen to me several times!