Right, I have done the salted peanut millionaire's shortbread and it was bloody lush. I'm not so sure about the shortbread/toffee/chocolate ratio, I think maybe there is too much shortbread, but that's me being fussy I think.
100g caster sugar
200g butter, softened and diced
300g SR flour
400ml duo he de leche or boiled condensed milk
125g salted peanuts roughly chopped
400g milk chocolate
Preheat oven to 180/fan 160/gas 4
Line the base of a tray bake tin
Rub together the butter and flour until it resembles breadcrums, then stir in the sugar.
Tip into the tin and press down with your hands or back of a spoon.
Bake for about 20 mins or until golden brown.
Remove from oven and cool in tin.
Spread over the dulche de leche then press the roughly chopped peanuts into it.
Melt the chocolate and pour over the peanut studded dulche de leche.
Put in the fridge for two hours to set.
If you have a tried and tested millionaire shortbread recipe already,use it and just add chopped salted peanuts on the toffee before you pour the chocolate on top.
The above recipe makes lots of squares as I cut them quite small. They are very rich and sweet - and I'm a total glutton.