Easy Nutella Cake (no flour)

I love nutella. I love nutella. I really love nutella. I have two recipes for a nutella cake but this specific recipe is unbelievably easy, calling for only two ingredients: nutella & eggs. The frosting calls for three ingredients: nutella, butter & icing (confectioner's) sugar. The result is a decadent, very moist & dense cake.

For the cake you will need, 300grams (10oz) of nutella & 4 eggs (whites and yolks separated)

1. Grease and line with parchment paper a 7 inch round spring-form tin. Heat oven to 180 C (160 C fan/350 F).
2.  In a medium sized bowl beat the egg yolks vigorously until fluffy. Slowly add in nutella in 3 lots, mixing after each addition. Beat until the mixture is smooth.
3. Vigorously beat the eggs whites until they are very stiff & foamy. Slowly fold the egg whites in three lots, into the nutella mixture.
4. Stir until smooth.
5. Transfer to the spring-form. Bake for about 25 minutes until cake starts pulling off the sides of the tin.

For the frosting you will need, ¾ cup of soft butter, 3 cups icing (confectioner's sugar), 100 grams (3.5 oz) nutella

Beat all of the ingredients until smooth. Store in fridge until cake is completely cooled.