Equipment
Ingredients
Custard Base
- 480 ml heavy cream, chilled
- 240 ml whole milk, chilled
- 5 egg yolk, room temperature
- 150 g granulated sugar, dry
- 1 vanilla bean, split and scraped
- 5 ml pure vanilla extract, liquid
- 1 g fine sea salt, dry
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 334 kcal
- Protein
- 4 g
- Carbohydrates
- 22 g
- Fat
- 26 g
- Fiber
- 0 g
- Sugar
- 22 g
- Sodium
- 84 mg
- Saturated Fat
- 15 g
- Potassium
- 111 mg
- Calcium
- 89 mg
- Iron
- 0.4 mg
- Magnesium
- 8 mg
- Phosphorus
- 105 mg
- Zinc
- 0.5 mg
- Vitamin A
- 304 mcg
- Vitamin C
- 0 mg
- Water
- 68 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
In a medium heavy-bottomed saucepan, combine 480 ml heavy cream, 240 ml whole milk, 1 g fine sea salt, and the split pod and scraped seeds of 1 vanilla bean. Heat over medium heat until steaming and bubbles form around the perimeter, reaching 75°C (167°F), then remove from heat.
In a heatproof mixing bowl, combine 5 egg yolks and 150 g granulated sugar. Whisk vigorously for 2 to 3 minutes until pale, thickened, and falling from the whisk in ribbons.
Slowly ladle approximately 240 ml of the warm dairy liquid into the egg yolk mixture while whisking constantly with the whisk to gently temper the eggs without scrambling them.
Pour the tempered egg mixture back into the medium heavy-bottomed saucepan. Cook over medium-low heat, stirring continuously across the bottom and corners with a silicone spatula, until the custard thickens to coat the spatula and registers between 77°C and 80°C (171°F and 176°F) on a digital kitchen thermometer, ensuring it safely surpasses the 71°C (160°F) egg-safety threshold.
Immediately pour the cooked custard through a fine-mesh sieve into a clean heatproof mixing bowl set inside a large bowl for ice bath. Discard the vanilla pod, stir in 5 ml pure vanilla extract, and stir occasionally until the base drops below 21°C (70°F).
Press a sheet of parchment paper or plastic wrap directly onto the surface of the custard to prevent a skin from forming, then transfer the heatproof mixing bowl to the refrigerator to chill for at least 4 hours until it reaches 4°C (39°F) or colder.
Pour the thoroughly chilled custard into the pre-frozen canister of the ice cream maker. Churn for 20 to 25 minutes according to machine directions until the ice cream expands and thickens to a soft-serve consistency.
Using a silicone spatula, transfer the churned ice cream into an airtight freezer-safe container. Press parchment paper directly against the surface, seal tightly with the lid, and freeze at -18°C (0°F) for at least 4 hours until firm and scoopable.
Chef's Notes
- Aging the base for 12 to 24 hours in the refrigerator allows milk proteins to fully hydrate and milkfats to solidify into small crystal nuclei, which dramatically reduces churn time and yields an exceptionally smooth texture.
- Rinse the discarded vanilla bean pod under cold water, dry it thoroughly at room temperature for 48 hours, and bury it in 500 g of granulated sugar to create fragrant homemade vanilla sugar.
- Pre-chill the airtight storage container in the freezer for 30 minutes before packing the churned ice cream to avoid premature melting during transfer.
- For the cleanest presentation and smoothest scoops, dip your ice cream scoop in warm water and shake off excess droplets between each portion.
Storage
Refrigerator: 3 days — Unchurned custard base may be kept in an airtight container for up to 3 days before churning.
Freezer: 1 month — Store in an airtight freezer-safe container with parchment paper pressed directly onto the surface to prevent ice crystallization.
Troubleshooting
Custard base curdles and displays graininess while cooking on the stovetop
Cause: The custard exceeded 82°C (180°F) or was not stirred continuously, causing egg proteins to contract and separate.
Fix: Immediately plunge the pan into an ice bath, blend the custard with an immersion blender for 60 seconds, and pass it through a fine-mesh sieve. If curds are coarse and smell sulfurous, it cannot be fixed.
Prevention: Maintain low-to-medium heat, stir constantly across the bottom of the saucepan with a silicone spatula, and use a digital thermometer to pull the pan off heat as soon as it reaches 78°C to 80°C (171°F to 176°F).
Ice cream has an icy, crunchy texture after freezing rather than a smooth mouthfeel
Cause: The custard base was not thoroughly chilled to 4°C (39°F) before churning, or the ice cream maker canister was not cold enough, leading to slow freezing and large ice crystals.
Fix: Melt the ice cream completely in the refrigerator, chill back down to 4°C (39°F), refreeze the churning canister, and re-churn.
Prevention: Chill the custard base for at least 4 hours in the refrigerator, and ensure the churn canister freezes for at least 24 hours at -18°C (0°F).
Ice cream freezes rock hard and is difficult to scoop from the container
Cause: Standard home freezers maintain low temperatures without commercial overrun aeration or artificial anti-freeze stabilizers.
Fix: Allow the container to rest on the counter at room temperature for 10 to 12 minutes before scooping.
Prevention: Add 15 ml of high-proof neutral spirit or bourbon to the cooled custard prior to churning to slightly depress the freezing point.
Cultural Context
Custard-based frozen desserts, historically perfected in France and known as glace a la creme, became the gold standard of European frozen confectionery during the eighteenth century. Unlike eggless American Philadelphia-style ice cream, the French tradition relies on cooked egg yolks to create a stable, velvety emulsion with a distinct pale golden tint. The pairing with cured vanilla planifolia orchid pods became a cornerstone of classic Western culinary heritage following vanilla global trade routes.
