1teaspoonvanilla extract - or ½ vanilla bean, scraped
Instructions
Heat milk and cream in a saucepan over medium heat until steaming - you want small bubbles around the edge, not a rolling boil.
In a bowl, whisk sugar and egg yolks together until the mixture turns pale yellow and slightly thick, about 2 minutes.
Temper the eggs: slowly ladle the hot milk mixture into the yolks a little at a time, whisking constantly. This is where scrambled eggs happen if you rush it - go slow.
Pour the whole mixture back into the saucepan and cook over low heat, stirring constantly with a wooden spoon or silicone spatula, until it coats the back of the spoon. This is your anglaise. Pull it at 170-175°F if you have a thermometer.
Remove from heat, stir in vanilla, and strain through a fine-mesh sieve into a clean bowl.
Press plastic wrap directly onto the surface of the custard and refrigerate until completely cold - at least 4 hours, overnight is better.
Churn in your ice cream maker per manufacturer instructions, usually 20-25 minutes.
Transfer to a container and freeze at least 2 hours before serving. For proper gelato texture, let it sit at room temperature for 3-5 minutes before scooping.
Notes
Makes about 1 quart. Don't rush the temper, pull the custard as soon as it coats the spoon, and never churn a warm base - it has to be fully cold or the gelato won't set properly. Straight from the freezer it'll be too hard: those few minutes on the counter before scooping are part of what makes gelato, gelato.