Pre-heat your oven to 180° (160° fan)
Melt your butter in the microwave. Add to a mixing bowl with your sugar and beat until combined
Add the eggs and vanilla and beat again
Mix in the flour and cornflour
Chop your white chocolate into chunks (you can also use white chocolate chips) and raspberries. Fold in 200g of white chocolate chunks and 150g of raspberries
Pour the batter Into a 9x9inch brownie tin. Bake for 25-35 minutes
Once cooked, allow to cool completely. Then place your brownies in the fridge for 2-3 hours or overnight
Melt 50g of white chocolate and pour over the brownies. Then decorate with the rest of your raspberries and a dusting of icing sugar
Slice up and enjoy!