1. Preparing Your WorkspaceTurn your oven to 325°F (160°C).Place your ramekins inside a large baking dish without touching each other.
2. Heating the Cream MixtureIn a saucepan, combine eggnog and heavy cream. Heat over a medium flame until almost bubbling, but not allowing it to boil. Stir it occasionally in order to avoid scorching.
3. Whisking the Egg MixtureIn another mixing bowl, whisk together the egg yolks and sugar until the mixture is pale and slightly thickened. This will help to ensure that your custard is rich and creamy.
4. Tempering the EggsAdd the warm eggnog mixture slowly to the egg yolk mixture, while constantly whisking. Tempering prevents the yolk from curdling. Add vanilla extract and a little nutmeg. Stir gently in.
5. Straining the CustardStrain custard mixture through a fine-mesh sieve into another bowl. This process serves to remove lumps, small cooked bits of eggs, and strains smooth custard.
6. Fill RamekinsDistribute the prepared custard evenly among ramekins.
7. Making the Water BathPour boiling water into the dish, achieving half up on the sides of the ramekin. The water bath avoids overheating the custard, leaving a silky texture.
8. Bake the CustardBake for 30–40 minutes, or until the edges are set and centers still jiggle ever so slightly when the ramekins are tapped.
9. Cooling and ChillingCarefully remove the ramekins from the water bath and let them cool to room temperature. Cover and refrigerate for at least 4 hours or overnight for the best results.