Viennese Torte

Directions

1. 1
   Melt butter, chocolate chips and water over high heat.
2. 2
   Beat and cool.
3. 3
   Add egg yolks, sugar and vanilla.
4. 4
   Beat until smooth. Cool before spreading on cake.
5. 5
   Slice the cake horizontally into 4 equal parts.
6. 6
   Spread chocolate mixture between each layer.
7. 7
   Pour the remaining chocolate mixture on the top of the cake, letting it run down the sides on to the cake platter.
8. 8
   Chill at least one day or overnight.