Step 1 - Preheat your oven to 375
o
F.
Step 2- On your pre-baked crust (don't over bake your crust so it splits), spread the Nutella over the base so it makes a nice layer.
Step 3- Melt your butter and allow it cool so it's just warm (Still liquid obviously)
Step 4- Melt the chocolate, be careful not to burn it, I used to a water bath.
Step 5 - Stir the egg into the melted chocolate, don't beat it so much so that it becomes airy, you want this to be dense. Then stir in the yolks, and then the sugar. Once you've done then add your butter and stir for a good bit. At first it's going to look chunky and not smooth, but eventually it will become smooth.
Step 6- Pour the filling over the ganache and then bake in the oven for about 10 to 11 minutes. Sprinkle on the nuts and allow it to cool in the fridge for at least 6 hours, better overnight.
Enjoy!