The original recipe calls for peanuts (at least that's the rumor) and most other versions call for almonds. Luisa, who taught me this recipe uses toasted hazelnuts.
Ingredients
250 Grams - 9 ounces dark chocolate
125 grams / 4.5 ounces butter
4 eggs
170 grams / 6 ounces sugar
10 ml / 1 tablespoon rum
4 teaspoons finely ground coffee
1/4 teaspoon salt
130 grams / 4.5 ounces toasted hazelnuts, peeled and chopped
heavy cream (for whipping)
Instructions
Preheat oven to 350F/ 180C
Line a 12 inch springform pan with parchment.
Melt the butter and chocolate in a bowl over a gently simmering pot of water. Set aside to cool slightly.
Separate the yolks from the egg whites.
Beat the yolks with the sugar until thick and creamy. Add the rum, salt and chopped nuts and coffee. Stir and then add the melted chocolate and butter.
Beat the egg whites until stiff and gently fold into the chocolate mixture.
Pour the mixture into the lined pan and bake for 25 minutes.
Let cool on rack, then gently remove from pan. Let cool before cutting.
To serve, cut into slices carefully (it's a bit fragile) and top with powdered sugar and a bit of whipped cream.
Recipe by Elizabeth Minchilli at https://www.elizabethminchilli.com/2015/01/torta-barozzi-flourless-chocolate-cake/