1. Whisk the egg yolks, 1/2 cup of the sugar, and corn syrup in a saucepan, stir in the cream, milk, and mascarpone, and cook to 165–175°F, stirring constantly.
2. Stir in the vanilla, strain into a CREAMi pint, chill in an ice bath, and freeze 24 hours.
3. Simmer the berries with the remaining 2 tablespoons sugar about 8 minutes, mashing into a quick jam, and let it cool.
4. Spin on the Gelato program, spoon the jam into a center well, and run Mix-In.