Problem-Solving Pointers for Custard
Custard is Curdled
It's overbaked. Baked only until a knife inserted about halfway to the center comes out clean, not until the center is completely set.
Next time, bake the custard in a water bath.
After baking, immediately remove custard from water bath; otherwise, it will continue to cook in the hot water.
Custard has Bubbles on the Top
Next time, beat eggs only until they are blended, not foamy.