3 oz Unsweetened Chocolate
1 1/2 c  Powdered sugar; sifted
2 1/2 tb Water; hot
3    Egg yolks
4 tb Butter

Melt chocolate in double boiler. Remove from boiling water, add sugar and
water, and blend. Add egg yolks, one at a time, beating well after each.
Add butter, a tablespoon at a time, beating thoroughly after each amount.
Makes enough frosting to cover the top of one 9″ layer and sides of three
9″ layers, or to cover the tops and sides of two 9″ layers.