[550 g of sugar], [10 eggs], [500 g of sweet potatoes], [250 g of chopped walnuts], [1 package of vanilla sugar], [500 g of whipped cream (chiffon cream)]
[550 g of sugar], [10 eggs], [500 g of sweet potatoes], [250 g of chopped walnuts], [1 package of vanilla sugar], [500 g of whipped cream (chiffon cream)]
To make the batter: beat the egg yolks with sugar (500 g) until frothy
Add cooked and mashed sweet potatoes, chopped walnuts, vanilla sugar, and finally beaten egg whites to the mixture
Bake in three layers in a moderate oven
For the filling, heat 100 g of chopped walnuts with 1 cup of water over low heat for a few minutes
Beat 2 egg yolks with 5 tablespoons of sugar
Add to the walnuts and let simmer for 2 minutes
Let cool to thicken
To assemble the cake: divide the whipped cream into two equal parts, one for the filling and one for the topping
Cover one layer of cake with walnut cream and then a layer of whipped cream
Repeat the layers and top with whipped cream and decorate with whole walnuts.
