For the cream and cinnamon cake, beat the eggs with the powdered sugar in a bowl until fluffy. Gradually stir in the cream and oil.
Sift together flour, cocoa powder, hazelnuts, almonds and baking powder and stir into the yolk mixture. Pour the batter into a greased and floured loaf pan and bake the cream and cinnamon cake at 180°C for about 50 minutes.