Custard is a simple cooked mixture of milk (or cream), egg yolks, sugar, and a little thickener, gently heated until it coats the back of a spoon. A basic stovetop custard takes about 15–20 minutes and can be served warm or chilled.

What you’ll need

  • 2 cups milk (or half milk, half cream)
  • 3–4 egg yolks
  • 3–4 tablespoons sugar (more if you like it sweeter)
  • 1–2 tablespoons cornstarch (for easier, fail‑safe thickening)
  • 1 teaspoon vanilla extract
  • Small pinch of salt

Step‑by‑step: how to make custard

  1. Warm the milk
    • Add the milk (and cream, if using) to a saucepan.
    • Heat on medium until it’s hot and steaming but not boiling.
  2. Whisk the egg base
    • In a bowl, whisk together: egg yolks, sugar, cornstarch, and salt until smooth and a bit paler.
    • This should look like a thick, glossy mixture.
  3. Temper the eggs
    • Slowly pour a splash of the hot milk into the egg mixture, whisking constantly.
    • Add more hot milk in a thin stream while whisking, until everything is combined.
    • This step gently warms the eggs so they don’t scramble.
  4. Cook the custard
    • Pour the mixture back into the saucepan.
    • Cook on low–medium heat, stirring all the time with a spatula or wooden spoon, scraping the bottom and sides.
    • After a few minutes it will thicken; stop when it coats the back of a spoon and a finger swiped through leaves a clear line.
  5. Finish and cool
    • Take off the heat and stir in vanilla (and a small knob of butter if you want extra richness).
    • For extra smooth custard, strain through a fine sieve into a clean bowl.
    • Serve warm over cake or fruit, or press plastic wrap directly on the surface and chill until cold.

Mini tips so it doesn’t go wrong

  • Keep the heat gentle ; high heat curdles the eggs.
  • If you see little lumps forming, remove from heat and whisk briskly; straining often saves it.
  • Custard thickens more as it cools, so stop cooking when it’s just slightly thinner than you want.
  • Use more cornstarch for a thicker, pudding‑style custard; less for a pourable sauce.

Quick variations

  • Chocolate custard : Stir in chopped chocolate at the end while warm.
  • Citrus custard : Add lemon or orange zest while heating the milk, then strain.
  • Baked custard : Use whole eggs instead of just yolks, pour into ramekins, and bake in a water bath until just set.

Information gathered from public forums or data available on the internet and portrayed here.