Ingredients:

1/4 c Flour
1 c Sugar
1/4 ts Salt
1/3 c Water
2 Egg Yolks, Beaten
2 ts Lemon Rind, Grated
1 ts Butter
1/4 c Lemon Juice

Method:

Blend flour, sugar and salt in a saucepan; add water, stir until smooth.
Place over moderate heat, stir constantly until thick and clear.
(7-8 min.
) Beat egg yolks, add a little hot mixture, beat thoroughly, return to saucepan, stir vigorously; and cook another 2 min.
Remove from heat.
Blend in rind and butter, then lemon juice.
Cool.
From Meta Givens Modern Encyclopedia of Cooking.