INGREDIENTS
1 1/2 cups
all-purpose flour
1 1/3 cups
granulated sugar
1/2 cup
unsweetened alkalized (aka Dutch-processed cocoa powder (I like Valrhona))
1 1/4 tsp
baking soda
1 1/4 tsp
baking powder
1 tsp
salt
2 1/2 fluid_ounces
vegetable oil
5 fluid_ounces
buttermilk (at room temperature)
4 1/2 fluid_ounces
hot water (or coffee)
2
eggs (room temperature, beaten together)
1 tbsp
vanilla
8 oz
toasted (skinned hazelnuts)
1 tbsp
hazelnut oil (or vegetable oil)
3/4 cup
heavy cream
1 cup
powdered sugar
1 tsp
vanilla extract
1/2 tsp
salt
8 oz
mascarpone cheese (can substitute cream cheese)
6 oz
semi-sweet chocolate (finely chopped)
1 cup
heavy cream
1 cup
heavy cream
1/4 cup
powdered sugar
1/2 tsp
vanilla extract
Additional toasted hazelnuts (chocolate-covered nuts, chocolate curls, etc)