Gateau Suisse

Directions

1. 1
   Boil potatoes in their jackets until tender.
2. 2
   Melt chocolate in top of a double boiler; let cool.
3. 3
   Butter a loaf pan & set aside.
4. 4
   Cream butter until fluffy. Add sugar, vanilla, instant coffee and egg yolks and beat at high speed until fluffy.
5. 5
   Add melted, cooled chocolate to butter mixture.
6. 6
   Put potatoes through a ricer or food mill; add to chocolate mixture. Beat just until smooth.
7. 7
   Pour into buttered loaf pan; chill at least 3 hours or overnight.
8. 8
   Run a knife around the edge of the pan; dip bottom into hot water. Unmold onto serving platter. Run the tines of a fork over the loaf to make decorative marks. Slice thinly; serve with whipped cream.