1/2 c  Butter
1 c  Potatoes, mashed
1/4 c  Cream cheese
1/3 c  Sugar
1/4 c  Sour cream
1 ts Orange rind, grated
3    Egg yolks
1 ts Lemon rind, grated
1 ts Vanilla

Cream butter until soft. Beat in mashed potatoes and
cream cheese. Stir in remaining ingredients.