In bowl combine the sugar, flour and butter. With a wooden spoon, continue stirring until mixture registers 165 to 180 degrees on an instant-read thermometer, about 2 minutes. Do not heat above 180 degrees, or eggs in base will scramble. Vanilla custard is the base for so many desserts, but it can also be enjoyed on its own. custard cups. Test Kitchen Tip : For a silky-smooth custard, pour the mixture through a fine mesh strainer before adding to the cups. Beat until well mixed. Then, sprinkle some cinnamon and nutmeg on top of the custard. Heat milk in a saucepan to just scalding (do not boil). Homemade Custard made from scratch with a few simple ingredients, an old-fashioned recipe that is so quick and easy to make, but absolutely delicious. No need for the ready-made one, this is a fail-proof recipe that will be a big hit with the whole family. Divide the custard mixture evenly between four lightly greased 8 oz.