1/3 c. sugar
1 tbsp. all-purpose flour
1 tbsp. cornstarch
1/4 tsp. salt
1 1/2 c. milk
1 slightly beaten egg yolk
1 tsp. vanilla
1/2 c. whipping cream, whipped

In saucepan, combine sugar, flour, cornstarch, and salt. Gradually stir in milk. Cook and stir until mixture thickens and boils; cook and stir 2 to 3 minutes longer. Stir a little hot mixture into egg yolk; return to hot mixture. Cook and stir until mixture just boils. Add vanilla; cool. Beat smooth and fold in whipped cream. May be used to fill eclairs or cream puffs.