Lone a baking tray pre heat oven to 160 fan or 180 decrees

Combine chocolate and butter

Heat over a Bain Marie until smooth

Add the sugar and stir

Add the flour and stir you can substitute some of this for coco powder if you want

Stir in eggs

Stir in chocolate

Put mix in oven for around 30 mins

Leave to cool

Dust with icing sugar

Cut into squares

And you're done enjoy !