1. Scald the Dairy Line
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In a saucepan over medium-low heat, combine the 2 cups of heavy cream, 1 cup of whole milk, and exactly half of the granulated sugar.
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Heat gently until steam begins to rise from the surface and small bubbles form around the rim (~175°F / 80°C). Do not let the mixture reach a rolling boil.
2. Temper the Egg Yolks
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While the dairy heats, place the 5 egg yolks and the remaining half of the sugar into a separate mixing bowl. Whisk vigorously until the mixture turns pale yellow and slightly thickened.
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The Thermal Transition: While whisking the eggs continuously, slowly pour a thin, steady stream of the hot cream mixture into the bowl. This gradual introduction of heat is mandatory to temper the eggs, raising their temperature slowly without shocking and scrambling the delicate proteins.
3. Cook to Napé Thickening
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Pour the tempered egg and dairy mixture completely back into the saucepan and place it over low heat.
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Stir the liquid continuously with a heatproof spatula, sweeping across the bottom floor of the pan to prevent scorching. Cook until the custard thickens slightly and reaches the napé stage—meaning it cleanly coats the back of a wooden spoon, and a finger drawn through the coating leaves a distinct, open track.
4. Strain and Thermal Crash
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Remove the custard from the heat source and immediately pour it through a fine-mesh strainer into a clean bowl to capture any accidental micro-coagulations.
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Stir in the 2 teaspoons of vanilla extract and ⅛ teaspoon of salt. Cover the surface directly with plastic wrap (touching the liquid to prevent a skin from forming) and refrigerate for at least 4 hours (preferably overnight). An intensely cold base freezes faster, generating smaller ice crystals.
5. Churn and Solidify
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Pour the chilled custard base directly into your ice cream maker and churn according to the manufacturer’s speed directives.
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Churn until the mixture achieves a thick, soft-serve consistency (usually 20 to 25 minutes). Pack the ice cream into an airtight container and freeze for 4 hours until hard and scoopable.
Method B: The Rapid No-Churn Base
1. Whip to Stiff Peaks
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Pour the 2 cups of heavy cream into a chilled mixing bowl. Note: Ensure the cream, bowl, and whisk attachments are intensely cold to maximize fat globule structural expansion.
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Using an electric hand mixer or stand mixer on medium-high speed, whip the cream until it holds stiff, stable peaks. This trapped air network provides the light, scoopable loft normally created by an ice cream maker’s churning paddle.
2. Fold the Sugar Matrix
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In a large separate bowl, combine the 14 oz can of sweetened condensed milk, 2 teaspoons of vanilla extract, and ⅛ teaspoon of salt.
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Add one large scoop of the whipped cream directly into the condensed milk and stir gently to lighten the density of the sticky syrup.
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Pour the remaining whipped cream into the bowl. Using a rubber spatula, gently fold the cream into the mixture using a sweeping downward and over motion. Do not stir or beat, as aggressive kinetic force will deflate the trapped air pocket matrix. Fold just until unified.
3. Incorporate Mix-ins and Freeze
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If you are deploying optional texturizers (such as chocolate shavings, crushed cookies, fruit purees, or a caramel swirl), gently fold them into the aerated cream now.
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Transfer the mixture into a metal loaf pan or an airtight container. Smooth the top surface, seal tightly, and freeze for at least 6 hours until completely set.
