Here is another recipe from down on the Quaker Farm.
You can use this cream filling for a lot of different pastries, like cream puffs, between the layers in a Boston Cream Pie, and in other goodies.It's pretty easy to make and tastes so good.
BASIC CREAM FILLING
1/3 c. sugar
3 T. flour
¼ t. salt
1¼ c. milk
1 beaten egg
1 T. butter
1 t. vanilla
In saucepan, combine dry ingredients, gradually add milk, and mix well. Cook over med heat stirring til mix thickens and boils. Cook 2 min longer. Very gradually stir the hot mixture into egg and return to saucepan. Cook til mixture just boils. Sir in butter and vanilla; cover surface with wax paper. Cool.
There are also variations of this recipe:
BUTTERSCOTCH: Replace sugar with brown sugar and increase butter to 2 T.
CHOCOLATE: Increase sugar to ½ c. and Add 1 square unsweetened chocolate (cut up) with the milk.