French Cream Frosting

2 T cornstarch

1 ½ cup milk

½ cup butter

½ shortening

1 cup sugar

1 t vanilla

¼ t salt

Combine cornstarch and milk; cook over low heat until thick. Cool in pan of ice water or refrigerator. Cream butter, shortening, then add sugar gradually. Beat until light & fluffy. Add vanilla & salt. Add cooled milk mixture to shortening; beat until the consistency of whipped cream.