Basic Pie - cooking recipe

Ingredients

1 c. sugar
1/4 c. plain flour
pinch of salt
3 egg yolks
2 c. milk
3/4 stick butter
1 tsp. vanilla

Preparation

Mix sugar, flour and salt in bowl.
Beat egg yolks in heavy pan.
Add sugar and flour mixture, alternating with milk, into eggs until all is mixed.
Add butter and cook slowly, stirring constantly, until thick.
Add vanilla.