Ingredients
Equipment
Method
Make the vanilla base
- Heat heavy cream and whole milk in a pot over medium heat until steaming, stirring to prevent scorching (about 3 to 4 minutes). A thin steam should rise consistently from the surface.
- In a bowl, whisk egg yolks with 1/2 cup granulated sugar until smooth and slightly lighter in color. The mixture should look glossy with no sugar lumps.
- Slowly whisk the hot cream mixture into the egg yolks to temper, then return everything to the pot. Keep whisking so the custard stays smooth.
- Cook, stirring constantly, until the custard reaches 175°F and coats the back of a spoon (about 6 to 7 minutes). It should thicken noticeably and leave a clear trail when you swipe your finger through.
- Strain the custard into a clean container, then stir in vanilla extract and salt. The liquid should be silky with no egg bits visible.
- Cool completely before churning. The custard should be room temperature or colder.
Make the orange syrup
- Combine fresh orange juice, orange zest, and the remaining 1/4 cup granulated sugar in a small saucepan. Make sure the sugar is evenly distributed.
- Simmer the mixture for 5 minutes, stirring occasionally, until slightly syrupy. It should look glossy and coat the back of a spoon lightly.
- Cool completely. The syrup should thicken a bit as it cools.
Churn and swirl
- Churn the vanilla custard in an ice cream maker until thick, following your machine’s instructions (about 20 to 30 minutes). It should hold soft-serve peaks when you lift the paddle.
- During the last 2 minutes, drizzle in the orange syrup and stop mixing immediately after the drizzle. You should see distinct orange ribbons rather than fully blended color.
Freeze
- Transfer the ice cream to a freezer-safe container and layer spoonfuls to maintain the swirl. The top should show visible orange-and-vanilla streaks.
- Freeze at least 4 hours until firm. The texture should scoop cleanly with minimal melting at the edges.
Notes
For the smoothest custard, keep the heat steady while cooking to 175°F and stir constantly so it thickens without scrambling the yolks. Refrigerate any leftover ice cream in a sealed container for up to 3 days; freeze for up to 2 months (texture may soften slightly). For a lighter option, use half-and-half instead of whole milk, but expect a softer scoop after freezing.
