|Though Whit's recipe is a secret, here is a recipe for this flavor of ice cream.
Ice Cream Base
1 cup granulated sugar
1 1/3 cup heavy (whipping) cream
2 cups whole milk, divided
3 tablespoons light corn syrup
Pinch of salt
1 1/2 tablespoons cornstarch
1 teaspoon raspberry extract (or substitute vanilla extract and 2 pinches of fresh lemon zest)
2 tablespoons cream cheese, softened
One batch Raspberry Ripple Sauce, prepared ahead and chilled
In a 4-quart non-reactive saucepan, stir together the sugar, cream, 1 3/4 cups milk, corn syrup, and salt. Bring to a boil over medium-high heat. Adjust heat so the mixture boils gently and cook, stirring occasionally, for 4 minutes. In a cup, stir the cornstarch into the remaining milk until smoothly incorporated. Stir the mixture into the saucepan and let return to a full boil, stirring. Continue cooking 2 minutes longer or until just thickened slightly, then immediately remove from the heat. Combine the cream cheese in a small, deep bowl with about 1/4 cup of the base mixture. Whisk until completely smooth and well blended. Thoroughly stir the mixture back into the ice cream base.
Stir the raspberry (or vanilla) extract and a generous 1/3 cup to 1/2 cup of the raspberry sauce into the ice cream base; reserve the remainder of the sauce for rippling. Pour the mixture through a sieve into a non-reactive storage container. Refrigerate until very cold, at least 4 hours and up to 24 hours, if desired.
Put the ice cream base in an ice cream maker and proceed according to the manufacturer’s directions. When it has finished processing, spoon out about a third of the mixture into a well chilled 1-quart or larger freezer-safe storage container. Add 2 to 3 tablespoons raspberry sauce. Add another third of the ice cream and top with 2 to 3 tablespoons more raspberry sauce; repeat a third time. (Reserve any leftover sauce for simply spooning over vanilla ice cream.) With a table knife held vertically, swirl the mixtures together to create ripples of sauce throughout; for large ripples and streaks mix fairly lightly, for a more blended ice cream, mix more thoroughly. Immediately freeze, airtight, for up to 2 weeks.
Makes a generous 1 quart