Vanilla Custard Sauce (British) by Marlin Rinehart

This sauce is served over steamed puddings, fruit crisps (crumbles), and any dessert that would be enhanced by a creamy vanilla sauce. It's the perfect homemade replacement for Byrd's Custard powder. One warning, however: 1) use a small, "thick-bottom" saucepan, and 2) cook over low heat and don't allow the mixture to boil or it will…