Ingredients:
- ¾ cup (180 g) heavy cream
- 1½ cups (360 g) whole milk
- ½ cup (100 g) granulated sugar
- ¼ cup (60 g) egg yolks (about 4 large)
- 1 tablespoon (15 ml) pure vanilla extract
- ⅛ teaspoon (0.7 g) fine salt
- 6 cups (about 850 g) crushed ice (hand-crank machine only)
- 1 cup (about 280 g) coarse rock salt or ice cream salt (hand-crank machine only)
Instructions:
- Pour the heavy cream and whole milk into a heavy-bottomed saucepan and set over medium heat.
- Stir occasionally until the mixture steams and small bubbles form at the edges, about 4–5 minutes. Do not let it boil.
- Remove from the heat and keep warm.
- In a heatproof bowl, whisk the egg yolks and sugar for 1–2 minutes, until pale and thick enough to fall in a ribbon.
- Ladle about ¼ cup (60 ml) of the warm dairy into the yolks while whisking constantly. Repeat with another ½ cup (120 ml) of warm dairy to gradually warm the yolks so they do not scramble.
- Pour the warmed yolk mixture back into the saucepan with the remaining dairy.
- Cook over medium-low heat, stirring constantly with a wooden spoon, for 5–8 minutes, until the custard reaches 170–175°F (77–79°C) and coats the back of the spoon. Drag a finger across the spoon; the line should hold its shape. Stop cooking as soon as this is reached.
- Pour the custard through a fine-mesh sieve into a clean bowl to catch any small bits of cooked egg.
- Stir in the vanilla extract and fine salt while the custard is still warm.
- Press plastic wrap directly onto the surface of the custard to prevent a skin from forming.
- Set the bowl in a larger bowl of ice water for 10 minutes, then refrigerate for at least 4 hours or overnight, until the base is below 40°F (4°C).
- If using a freezer-bowl machine, freeze the bowl for at least 24 hours before churning.
- Pour the chilled base into the ice cream maker and churn for 20–25 minutes, until it resembles thick soft-serve.
- For a hand-crank machine, layer crushed ice and rock salt around the canister as the manufacturer directs, then churn until the paddle is hard to turn.
- Spoon the ice cream into a freezer-safe container, press plastic wrap onto the surface, cover tightly, and freeze for at least 4 hours until scoopable.