Raise your hand if you're as into the chocolate-hazelnut combo that is Nutella, Baci, and Gianduja! I'm so into it that I cannot pass a gelato stand without ordering it. So, for our Ice Cream Social party we had to include a version. This version goes big on the chocolate-hazelnut flavors with chocolate ice cream combined with toasted hazlenuts, and layered with a chocolate-hazelnut sauce swirl.
toasted and roughly chopped
stirred and warmed until pourable
Make the ice cream: In a bowl, stir together 1/4 cup milk and the cornstarch; set slurry aside. In a 4-quart saucepan, whisk together remaining milk and the cream, 1/2 cup of the sugar, syrup, and salt; bring to a boil over medium-high heat. Cook for 4 minutes; stir in slurry. Return to a boil and cook, stirring, until thickened, about 2 minutes. Place cream cheese in a bowl and pour in 1/4 cup hot milk mixture; whisk until smooth. Then whisk in remaining milk mixture.
Make the chocolate sauce: Bring cocoa, brewed coffee, and remaining 1/2 cup sugar to a boil in a 2-quart saucepan over high heat; cook for 30 seconds. Remove from heat and stir in chocolate.
Stir sauce into ice cream base. Pour mixture into a gallon plastic bag; seal, and submerge in a bowl of ice water until chilled. Pour mixture into an ice cream maker; process according to manufacturer's instructions. Just before turning off the ice cream maker, add the hazelnuts and let mix for just a few seconds.
Before adding the hazlenuts, place them in a fine mesh seive and shake to remove any skins or small pieces of nuts in order to avoid your final ice cream being gritty!
Immediately remove the ice cream from the maker and layer into a 1 pound loaf pan. Layer one third of the ice cream into the loaf pan then add half of the hazelnut sauce and spread to the edges of the pan. Layer with another third of the ice cream and the hazelnut sauce. Top with remaining ice cream, transfer to a storage container, and freeze until set.
You'll want the hazelnut spread to be pourable but not so hot it will melt the ice cream. If the spread is not pourable after briefly warming it in the microwave, you can warm it up then whisk it together with 2 tablespoons of a neutral oil (say, canola or grapeseed) to make it thinner.