Ingredients
Equipment
Method
Make the vanilla custard
- In a saucepan, heat the heavy cream and whole milk until steaming, not boiling. Visual cue: small bubbles form around the edges and the surface looks steamy.
- Whisk the steaming cream mixture slowly into the egg yolks beaten with granulated sugar. Visual cue: the mixture turns smooth and slightly lighter as you add it in a steady stream.
- Return everything to the saucepan and cook over medium-low heat, stirring constantly, until the custard reaches 175F. Time: about 10 minutes; visual cue: it thickens and coats the back of a spoon.
Chill and churn
- Strain the custard through a fine mesh sieve into a clean container. Visual cue: you remove any bits of cooked egg for a smooth, snow-white base.
- Stir in the vanilla extract and salt, then cool completely to room temperature. Visual cue: the custard looks glossy and uniform.
- Refrigerate the custard at least 4 hours until thoroughly chilled. Visual cue: it is cold throughout and holds its shape when stirred.
- Churn the chilled custard in an ice cream maker according to the manufacturer’s instructions until it reaches a thick, soft-serve consistency. Visual cue: it looks creamy and light while still holding ridges.
- During the last 2 minutes of churning, add the crushed chocolate sandwich cookies. Visual cue: some cookie pieces stay chunky while others dissolve slightly to create a cookies-and-cream swirl effect.
Freeze to firm
- Transfer the churned ice cream to a container with a lid and freeze until firm. Time: until scoopable and set, about 4 hours; visual cue: it becomes dense with minimal movement when the container is shaken.
Notes
Pro tip: keep the heat at medium-low and stir constantly so the custard reaches 175F without scrambling the egg yolks—straining helps guarantee a silky texture. Refrigerate the finished custard base up to 2 days before churning, and keep the churned ice cream frozen up to 2 weeks. Freezer yes; portion and re-freeze covered for best texture. Dietary swap: use a lactose-free milk/cream substitute to make it lactose-friendly while keeping the same method.
